Bioacoustic Vignette

Preliminaries:

Install these packages in R:{bioacoustics}, {warbleR}, {randomForest}, {tools}, {viridis}

Objectives:

The objective of this module is to introduce you to analysis of biacoustic data so that you can read, display, and analyze audio recordings of vocalizations in animals.

Intro to Bioacoustics:

What is bioacoustics, who uses it, and how is it implemented?

Broadly, bioacoustics is the the noninvasive crossdisciplinary science of biology and acoustics that studies the production, transmission, and reception of animal sounds. Given the wide range of information that bioacoustics provides, it’s used by researchers, physicians, and government agencies. Studying sounds and it’s affects on living organisms, can provide powerful insight into natural history, structure and dynamics of ecosystems, species biodiversity, habitat and species health, information climate change, and much more.

Typical Frequency Ranges:

Different Sounds will happen at different frequencies. This is important to know because you settings may have to change in order to display and analyze your bioacoustic data correctly. Here are a general list of frequency ranges that you might encounter:

• Humans: 100 Hz to 900 Hz
• Apes: 900 Hz to 1,400 Hz
• Birds: 1,000 Hz to 8,000 Hz
• Bats: 9,000 Hz to 200,000 Hz
• Frogs: 1500 Hz to 6000 Hz
• Whales: 30 Hz to 8,000 Hz
• Dolphins: 200 Hz to 150,000 Hz

First, let’s load in the packages that we need: ## Load in Packages

library(warbleR)

## Loading required package: tuneR

## Loading required package: seewave

## Loading required package: NatureSounds

## Loading required package: knitr

library(bioacoustics)

## 
## Attaching package: 'bioacoustics'

## The following object is masked from 'package:seewave':
## 
##     spectro

library(tools)
library(randomForest)

## randomForest 4.7-1.1

## Type rfNews() to see new features/changes/bug fixes.

# Unfortunately, ohun is currently under policy violation, so for the time being we are using an archived version. We expect this library to be unarchived after investigation.
url <- "https://cran.r-project.org/src/contrib/Archive/ohun/ohun_1.0.0.tar.gz"
install.packages(url, type="source", repos=NULL)
library(ohun)

## 
## Please cite 'ohun' as:

##  Araya-Salas, M., Smith-Vidaurre, G., Chaverri, G., Brenes, J. C., Chirino, F., Elizondo-Calvo, J., & Rico-Guevara, A. 2023. ohun: an R package for diagnosing and optimizing automatic sound event detection. Methods in Ecology and Evolution. https://doi.org/10.1111/2041-210X.14170

library(viridis)

## Loading required package: viridisLite

Importing Data from the internet

The Warblr package comes with the function query_xc which allows you to seamlessly import audio data from xeno-canto[https://xeno-canto.org/484847].

#pulling all Strepera versicolor calls without downloading locally
df1 = query_xc(qword ='Strepera versicolor type:call cnt:"Australia"', download = FALSE) #todo: include explanation for parameters of query_xc

## 51 recording(s) found!

#Filter by type   
df1 = df1[df1$Vocalization_type=="call",] #filtering by only calls
df1 = df1[df1$Quality=="A",] #a type quality
df1 = df1[1:9,]#takes the first 9 mp3 files 
View(df1)

#Download data to working directory
query_xc(X = df1, download = TRUE, path = getwd())

## Downloading files...

## double-checking downloaded files

Importing Your Own Data

Great! Now that we know how to load in data from an cloud-based data set, lets try something that will probably be more useful in your own future research endeavor. Say you are a ecologist who has just come back from a field expedition where you set up passive bio-acoustic monitors. All the recorded audio files (usually in .mp3 or .wav formats) are saved in a harddrive. How would you import your data then?

You can import you files straight from your Harddrive, Desktop or anywhere else on your personal computer. No need for cloud storage! The following code reads in a file named mgr.wav which, for the purpose of this example, has been saved in your working directory.

# getwd() gets our current working directory and file.path() combines getwd() and "mgr.wav" into a file path format. 
wav <- read_audio(file.path(getwd(), "mgr.wav"))

# Say you have a file saved on your Desktop, your code might look a little like this:
# wav <- read_audio(file.path("~/Desktop", "mgr.wav"))

pied currawong

Now that we know how to read files, lets load in a file named “Strepera-versicolor-571957.mp3”. Here is the mp3 file:

While reading in one file at a time is helpful, an ecologist returning from a month long expedition will surely have more than one file to read. We have written a funciton here that will read all the mp3 files in your working directory. You could expand on this funciton to read files in different directories or even create a data frame!

# Read just one file!
STREPV <- read_audio(file.path(getwd(), "Strepera-versicolor-571957.mp3"))
STREPV

## 
## Wave Object
##  Number of Samples:      2938752
##  Duration (seconds):     61.22
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Mono
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16

# Read all the files in your current directory!
read_all_mp3 <- function(){
  # List all mp3 files in current directory
  mp3_files = list.files(path=".", pattern=".mp3", all.files=TRUE, 
                         full.names=TRUE)
  audio_list <- list()
  # Append all the files a paths to a single list named audio_list
  for(files in mp3_files) {
    curr_file_path <- read_audio(file.path(files))
    audio_list <- append(audio_list, curr_file_path)
  }
  return(audio_list)
}

read_all_mp3()

## [[1]]
## 
## Wave Object
##  Number of Samples:      2938752
##  Duration (seconds):     61.22
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Mono
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[2]]
## 
## Wave Object
##  Number of Samples:      2644992
##  Duration (seconds):     55.1
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Mono
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[3]]
## 
## Wave Object
##  Number of Samples:      572544
##  Duration (seconds):     12.98
##  Samplingrate (Hertz):   44100
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[4]]
## 
## Wave Object
##  Number of Samples:      14673024
##  Duration (seconds):     305.69
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[5]]
## 
## Wave Object
##  Number of Samples:      1147392
##  Duration (seconds):     23.9
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Mono
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[6]]
## 
## Wave Object
##  Number of Samples:      2648448
##  Duration (seconds):     60.06
##  Samplingrate (Hertz):   44100
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[7]]
## 
## Wave Object
##  Number of Samples:      1325952
##  Duration (seconds):     30.07
##  Samplingrate (Hertz):   44100
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[8]]
## 
## Wave Object
##  Number of Samples:      5960448
##  Duration (seconds):     124.18
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[9]]
## 
## Wave Object
##  Number of Samples:      2025216
##  Duration (seconds):     45.92
##  Samplingrate (Hertz):   44100
##  Channels (Mono/Stereo): Mono
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16 
## 
## 
## [[10]]
## 
## Wave Object
##  Number of Samples:      1534464
##  Duration (seconds):     31.97
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16

Plotting the data:

Now that we’ve imported, converted, and read our audio files it’s time to plot them. This can be done many different ways depending on what information you need out of your bioacoustic information. These primlimary graph simply display the wave files but later on we will give you a way to graph analysis onto them.

The simplest of the graphs is plot() which plots wave objects. It displays a black and white graph of audio spikes. This is a waveform, x axis is the time of the file and the yaxis is a amplitude, or the displacement of a particle

#first you call your wave audio file that we converted previously: 

plot(STREPV)

#Now let's zoom in on the first audio spike: 

plot(STREPV, xlim = c(3, 5)) # xlim is indicating the time limits to narrow the field of analysis

Plot can also be used with stereo audio files where there is audio from the right and left channel. To see if your data is stero vs mono you can look at the list from either read_audio or read_all_mp3(). Under the audio file it will state Channels(mono/stereo) and if it is stereo you can plot it this way:

 #reads stereo audio and converts it into a wave object. 
STREPV2 <- read_audio(file.path(getwd(), "Strepera-versicolor-743906.mp3")) 

#displays wave object information. You can see clearly here that STREPV2 is a stereo wave object
STREPV2

## 
## Wave Object
##  Number of Samples:      5960448
##  Duration (seconds):     124.18
##  Samplingrate (Hertz):   48000
##  Channels (Mono/Stereo): Stereo
##  PCM (integer format):   TRUE
##  Bit (8/16/24/32/64):    16

#now let's plot it!
plot(STREPV2)

This plot graph is similar to the one above but it has one graph for the right channel and one for the left. Stero and mono wave object do plot differently with plot() so always make sure to confirm what kind of channel your object is.

While plot() is wonderful spectro() and fspec() are both plotting devices that come with the bioacoustics r package. They are able to generate spectrograms. Spectrograms are a visual representation of the strength or loudness of the audio signal/frequency throughout the wave object. Spectro, true to its name, plots a spectrogram of your data.

 #First let's look at the parameters within spectrogram:
?spectro()

## Help on topic 'spectro' was found in the following packages:
## 
##   Package               Library
##   seewave               /Library/Frameworks/R.framework/Versions/4.2/Resources/library
##   bioacoustics          /Library/Frameworks/R.framework/Versions/4.2/Resources/library
## 
## 
## Using the first match ...

#tick indicates the frequency tick marks. We are displaying from 1 to 20 khz by 1khz steps. Different animals may need different frequencies so be sure to check that you are display the correct range. 
ticks <- c(from = 1000, to = 20000, by = 1000)

#Specify the time limits on the X-axis in seconds (s)
temp_slice <- c(from = 1, to = 10)

spectro(STREPV, tlim = temp_slice, FFT_size = 512, ticks_y = ticks) #sets the y axis labeling, in Hz, so its 1 kHz to 100 kHz, in 1 kHz interval

NOTE: Y axis is frequency in hertz and X axis is time. However spectro() does not have the ability to add x axis label so it should only be used for visualization. Spectro() is wonderful for an elementary spectrogram but there is a better way to visualize the data with fspec(). It is a matrix of amplitude or decibel (dB) values in the time / frequency domain. This function on its own generates only the matris of a spectrogram so in order to visual the data we use image() to display the graph.

#First let's look at the parameters:
?fspec

#Now graph!
image(fspec(STREPV, tlim = temp_slice, rotate = TRUE)) 

NOTE: If you have older zero-crossing bat vocalization patterns, then the functions write_zc() and plot_zc() will serve as replacements for fspec() and spectro(). (Add in paragraph after running through spectro and fspec() with an asterisk)

Plotting parts of the data:

Now that we have the prepared audiofile in its manipulatative form, we can filter the desired sounds(the bird calls) from background noise(other bird noises, self noise, etc).

Blob_detection is one function that detects and filters audio and displays them in batches. It is a common type of detection/filtration algorithm used not only in audio analysis, but also image processing. Blob detection can be used to filter and identify colors, intensity/brightness etc.

# blob_detection
#?blob_detection 
blob_detection(
  STREPV, #the waveform of the audio file made
  time_exp = 1, #Time expansion factor, 1 represents real-time
  min_dur = 44, #Max duration of the audio event, in ms
  max_dur =1500,  #Max duration of the audio event, in ms, based on the plot(1500 ms) is the average length of the birds call
  min_area = 100, #Minimum number of pixels in the area of the audio event
  min_TBE = 20, #Min window between 2 audio events
  max_TBE = 10000,
  LPF = 25000, #Low-Pass Filter. Frequencies above the cutoff are not included.
          HPF = 2000,
          FFT_size = 256,# Size of the Fast Fourier Transform (FFT) window
          FFT_overlap = 0.875, #Percentage of overlap between two FFT windows
          blur = 2, #Gaussian smoothing function for blurring the spectrogram of the audio event to reduce image noise
          spectro_dir = file.path(getwd(), "Spectros"), #Path to the filtered spectrogram png files used on the yielded HTML
          time_scale = 2, #Time resolution of the spectrogram in milliseconds (ms) per pixel (px). 
)

## $data
##                         filename starting_time duration area freq_centroid
## 1 Strepera-versicolor-571957.mp3  00:00:03.097 71.33333  401      1237.986
## 2 Strepera-versicolor-571957.mp3  00:00:03.381 49.33333  287      1247.199
## 3 Strepera-versicolor-571957.mp3  00:00:20.605 82.00000  574      1264.565
## 4 Strepera-versicolor-571957.mp3  00:00:57.153 44.00000  265      1208.067
## 5 Strepera-versicolor-571957.mp3  00:00:57.244 64.66667  409      1241.921
##   freq_bandwith  freq_skew freq_kurtosis         q freq_gini quant_2.5 quant_25
## 1      247.4313 -24.174562    -103.86566  938.1288 0.7920891     562.5    937.5
## 2      219.8081  18.737304     -54.88416 1063.8814 0.7635304     750.0    937.5
## 3      209.6723  -5.002591     -91.27825 1130.8401 0.7558761     750.0    937.5
## 4      279.1307  42.073183     -90.72310  811.4927 0.8162410     562.5    750.0
## 5      230.6590 -23.341510     -83.98284 1009.5432 0.7761963     562.5    937.5
##   quant_50 quant_75 quant_97.5 freq_bw_95_ci freq_bw_75_ci temp_centroid
## 1   1125.0   1312.5       1500         937.5         375.0     13034.657
## 2   1125.0   1125.0       1500         750.0         187.5      7343.259
## 3   1125.0   1312.5       1500         750.0         375.0     12330.139
## 4    937.5   1125.0       1500         937.5         375.0      6540.422
## 5   1125.0   1125.0       1500         937.5         187.5      9595.896
##   temp_bandwith    temp_skew temp_kurtosis temp_gini grad_centroid
## 1      5199.787 -139.8401361     -107.7425 0.9867984      22319.21
## 2      3932.500  -20.2220692     -225.3064 0.9845241      22316.14
## 3      6620.532  -29.0079935     -225.3187 0.9914086      22316.99
## 4      3008.571   78.3178952     -158.7710 0.9737683      22297.09
## 5      4478.318   -0.4925654     -164.7851 0.9873572      22310.76
##   grad_bandwith grad_skew grad_kurtosis grad_gini
## 1      173.0945 -8.732523     -78.46431 0.7031322
## 2      169.8081 -4.675013     -83.93311 0.6981083
## 3      155.7545 -4.657852    -150.15086 0.6770658
## 4      200.4786 13.943588      68.25498 0.7314540
## 5      171.2944 -2.036727    -100.15579 0.7022376
## 
## attr(,"class")
## [1] "blob_detection"

The function returns an HTML file which shows all the audio events that fall within the parameters of the function

Threshold detection is another form of detection that identifies events based on the SNR, the signal-to-noise ratio. If the amplitude is above the SNR, an audio event is recorded.

# blob_detection
?blob_detection
blob_detect <- blob_detection(
  STREPV, time_exp = 10, FFT_size = 512, settings = FALSE, acoustic_feat = TRUE,
  metadata = FALSE, spectro_dir = file.path(getwd(), "Spectros"), time_scale = 0.1, ticks = TRUE)
blob_detect

## $data
##                          filename starting_time duration area freq_centroid
## 1  Strepera-versicolor-571957.mp3  00:00:00.214 1.733333   57      11509.42
## 2  Strepera-versicolor-571957.mp3  00:00:00.441 1.733333   48     157640.84
## 3  Strepera-versicolor-571957.mp3  00:00:01.172 1.600000   36      14585.35
## 4  Strepera-versicolor-571957.mp3  00:00:01.396 1.600000   36      14025.30
## 5  Strepera-versicolor-571957.mp3  00:00:01.730 1.733333   47      11146.00
## 6  Strepera-versicolor-571957.mp3  00:00:02.250 2.400000   48     208860.42
## 7  Strepera-versicolor-571957.mp3  00:00:02.470 1.600000   43      21271.37
## 8  Strepera-versicolor-571957.mp3  00:00:02.505 2.133333   61      22594.17
## 9  Strepera-versicolor-571957.mp3  00:00:02.600 3.866667  115      26377.19
## 10 Strepera-versicolor-571957.mp3  00:00:02.650 1.733333   43      24799.17
## 11 Strepera-versicolor-571957.mp3  00:00:03.153 1.866667   41      17809.74
## 12 Strepera-versicolor-571957.mp3  00:00:03.519 2.000000   73     156959.47
## 13 Strepera-versicolor-571957.mp3  00:00:03.544 1.866667   59     188494.87
## 14 Strepera-versicolor-571957.mp3  00:00:03.698 1.733333   60      32937.39
## 15 Strepera-versicolor-571957.mp3  00:00:04.295 2.533333   75      77461.42
## 16 Strepera-versicolor-571957.mp3  00:00:04.449 1.866667   43      11419.22
## 17 Strepera-versicolor-571957.mp3  00:00:04.727 1.733333   54      21630.74
## 18 Strepera-versicolor-571957.mp3  00:00:04.926 1.600000   43      13323.89
## 19 Strepera-versicolor-571957.mp3  00:00:05.348 1.866667   43     178486.26
## 20 Strepera-versicolor-571957.mp3  00:00:05.526 2.133333   61      24613.04
## 21 Strepera-versicolor-571957.mp3  00:00:05.857 1.866667   60     153924.02
## 22 Strepera-versicolor-571957.mp3  00:00:06.107 1.733333   53     179381.05
##    freq_bandwith  freq_skew freq_kurtosis          q freq_gini quant_2.5
## 1      1686.5981   50.65549    1130.68043   6397.543 0.8146040    6562.5
## 2       923.9792  -37.78314    -496.12028 157640.845 0.7235629  154687.5
## 3      4248.9230  264.83846   -1392.54296   3218.173 0.9050956    7500.0
## 4      2530.8835 -166.41798   -1154.05906   5195.308 0.8727576    8437.5
## 5      2522.7006  607.11505     553.09005   4142.139 0.8848403    5625.0
## 6       846.4706   50.74068    -294.06744 208860.416 0.6929870  206250.0
## 7      1459.2538 1305.89654    1876.99764  13665.829 0.7636269   18750.0
## 8      2173.8299  428.47073     162.62752   9744.109 0.8682261   17812.5
## 9      2377.3258 -355.85931    -171.33810  10401.863 0.8836312   20625.0
## 10     2095.4906  -32.19435    -923.88220  11094.882 0.8679886   19687.5
## 11      857.4108 -159.26115     -53.01204  17809.736 0.6902894   15000.0
## 12     1001.7257  -20.09335    -575.29022 146896.006 0.7466693  154687.5
## 13     1019.2170  -48.33357    -506.61304 173382.056 0.7496229  185625.0
## 14     2214.6048 -860.10136      74.84198  13943.257 0.8468375   27187.5
## 15     1711.5806 -560.82966     256.98135  42428.665 0.8345095   72187.5
## 16     1058.2455  458.08968     420.24667  10116.294 0.7422010    8437.5
## 17     1661.6396  525.66861     594.85582  12204.104 0.8265492   17812.5
## 18     1849.5414  343.22471    -819.98807   6753.647 0.8519955    9375.0
## 19      801.2268   29.39532    -615.80400 178486.262 0.6831777  176250.0
## 20     2071.4336  296.39857    -850.77527  11139.494 0.8700671   20625.0
## 21      999.8805  -73.87651    -449.89296 144321.015 0.7432561  150937.5
## 22     2746.4275  752.74768    -146.44662  61232.177 0.8717415  175312.5
##    quant_25 quant_50 quant_75 quant_97.5 freq_bw_95_ci freq_bw_75_ci
## 1    9375.0  10312.5  11250.0    14062.5        7500.0        1875.0
## 2  155625.0 156562.5 157500.0   158437.5        3750.0        1875.0
## 3   10312.5  12187.5  18750.0    20625.0       13125.0        8437.5
## 4   11250.0  13125.0  15000.0    16875.0        8437.5        3750.0
## 5    8437.5  10312.5  11250.0    15937.5       10312.5        2812.5
## 6  207187.5 208125.0 208125.0   209062.5        2812.5         937.5
## 7   19687.5  19687.5  20625.0    24375.0        5625.0         937.5
## 8   20625.0  21562.5  22500.0    27187.5        9375.0        1875.0
## 9   24375.0  25312.5  27187.5    30000.0        9375.0        2812.5
## 10  22500.0  23437.5  25312.5    27187.5        7500.0        2812.5
## 11  15937.5  16875.0  17812.5    18750.0        3750.0        1875.0
## 12 155625.0 155625.0 156562.5   157500.0        2812.5         937.5
## 13 186562.5 187500.0 188437.5   189375.0        3750.0        1875.0
## 14  30937.5  32812.5  33750.0    34687.5        7500.0        2812.5
## 15  75937.5  76875.0  77812.5    79687.5        7500.0        1875.0
## 16   9375.0  10312.5  11250.0    13125.0        4687.5        1875.0
## 17  19687.5  20625.0  21562.5    25312.5        7500.0        1875.0
## 18  11250.0  12187.5  14062.5    15937.5        6562.5        2812.5
## 19 177187.5 177187.5 178125.0   179062.5        2812.5         937.5
## 20  22500.0  23437.5  25312.5    27187.5        6562.5        2812.5
## 21 151875.0 152812.5 153750.0   154687.5        3750.0        1875.0
## 22 176250.0 177187.5 180000.0   184687.5        9375.0        3750.0
##    temp_centroid temp_bandwith   temp_skew temp_kurtosis temp_gini
## 1       5526.234      2974.807  276.922142    -801.83925 0.9063471
## 2       6812.355      2710.736   39.899061    -834.77228 0.8997112
## 3       5030.988      2717.624  433.890109    -822.08687 0.8771820
## 4       8313.223      2082.612 -378.871489      40.99792 0.8322269
## 5       5654.189      3037.165  748.989580    -898.78856 0.8230317
## 6       7895.815      4042.140   56.004392   -1235.14295 0.9198908
## 7       5848.714      3022.263  210.652813   -1272.23897 0.8826585
## 8       7427.968      3268.490  -10.932778    -309.41728 0.8837919
## 9      12269.068      6665.733  158.982492    -870.62759 0.9542048
## 10      6946.936      3606.388 -225.869525   -1363.02716 0.8880035
## 11      6222.410      3245.844  421.018488    -625.40115 0.9033035
## 12      8502.690      3286.952 -196.122077    -782.12589 0.9201824
## 13      7733.952      2823.721  -63.370600    -539.19561 0.9077699
## 14      6315.281      3054.074  -64.289426   -1070.47220 0.9090413
## 15     11165.087      4324.356 -611.370516    -512.18521 0.9134776
## 16      7250.586      3254.092   88.974994   -1159.43797 0.9064525
## 17      6349.671      2907.288  330.618462    -533.02715 0.8814838
## 18      4971.362      2646.788  330.307686    -615.27797 0.8847550
## 19      7242.348      2814.348   49.318970    -821.95393 0.9045610
## 20      7669.983      4355.560  216.889142   -1389.16785 0.9127321
## 21      7902.225      2897.406 -157.843451    -715.67399 0.9121402
## 22      6584.848      3115.318   -1.531813    -915.24808 0.9133159
##    grad_centroid grad_bandwith    grad_skew grad_kurtosis grad_gini
## 1       224831.6     1108.2273  -84.5780868     -70.94679 0.7593304
## 2       224951.7      802.4241  138.4298372    -490.41494 0.6819851
## 3       224324.6     1609.6106 -630.6693494     122.74474 0.8276108
## 4       225839.8     2133.1121  673.7238396      50.44008 0.8457446
## 5       224959.0     2084.2392 -554.2556535    -126.51304 0.8460706
## 6       225026.2      941.9505  -57.7367564    -391.42530 0.7240966
## 7       224764.0     1023.2823  144.5617379    -689.49368 0.7525042
## 8       225269.7     1755.8126 -634.3194141    -365.27597 0.8296660
## 9       225055.6     1282.9732  337.4291292     702.43737 0.7841717
## 10      225668.0     1920.2023 -479.1939381     -34.16691 0.8452282
## 11      224893.2      753.7817  134.5495779    -306.15499 0.6574611
## 12      225011.3      798.5886   42.7736939    -611.02551 0.6831883
## 13      224900.1     1009.3115   -0.4522949    -581.25204 0.7469442
## 14      224923.2     2120.5386  448.0359244     761.13770 0.8335104
## 15      225289.3     1400.8908 -178.6270214    -515.69793 0.8169537
## 16      224938.8     1054.9708  289.0862269     -27.91719 0.7487800
## 17      224652.0     1588.9450   10.6799352    -900.94847 0.8405731
## 18      224860.5     1789.9420  199.0083769     608.18017 0.8352993
## 19      224935.2      966.8229  -19.4224452    -538.49792 0.7361371
## 20      225079.2      987.1289  -47.1422633     197.76782 0.7284170
## 21      224964.9      868.3173   45.9436005    -458.38693 0.7053278
## 22      225706.5     1412.3153  228.9807356    -167.44019 0.8081637
## 
## attr(,"class")
## [1] "blob_detection"

# Threshold_detection
?threshold_detection
TD <- threshold_detection(
  STREPV, 
  threshold = 12, #threshold sets the sensitivity of the event, compared to the SNR(in dB)
  time_exp = 1,
  min_dur = 44,
  max_dur = 1500, 
  min_TBE = 20, 
  max_TBE = 10000, 
  LPF = 25000, 
  HPF = 2000, 
  start_thr = 20, 
  end_thr = 30, 
  SNR_thr = 8, #SNR threshold (dB) at which the extraction of the audio event stops.
  angle_thr = 125, #Angle threshold (°) at which the audio event extraction stops.
  duration_thr = 500, 
  NWS = 1000, #Length of time used for background noise estimation in the recording (ms)
  KPE = 1e-05, #Set the Process Error parameter of the Kalman filter. 
  KME = 1e-04, #Set the Measurement Error parameter of the Kalman filter.
  spectro_dir = file.path(getwd(), "Spectros"), 
  time_scale = 2, 
)
TD

## $data
## $data$event_data
##                         filename starting_time  duration freq_max_amp freq_max
## 1 Strepera-versicolor-571957.mp3  00:00:38.707 124.66667     6909.949 7885.231
## 2 Strepera-versicolor-571957.mp3  00:00:39.134  51.33333     6912.532 7474.057
## 3 Strepera-versicolor-571957.mp3  00:00:46.235 191.33333     7215.593 7785.613
## 4 Strepera-versicolor-571957.mp3  00:00:49.962  60.00000     2931.387 4460.171
## 5 Strepera-versicolor-571957.mp3  00:00:57.218 108.00000     3001.753 4024.091
##   freq_min bandwidth freq_start freq_center freq_end freq_knee       fc
## 1 6698.564 1186.6677   6709.934    7105.282 7256.392  7491.669 7259.848
## 2 6778.663  695.3945   7459.671    7087.875 6805.634  7401.058 6959.646
## 3 5937.733 1847.8808   6869.445    7339.626 5937.733  5937.733 7031.319
## 4 2574.225 1885.9452   2776.030    2998.087 4460.171  3851.935 3097.603
## 5 2329.643 1694.4487   2463.725    3072.088 4024.091  4024.091 3095.803
##   freq_bw_knee_fc bin_max_amp pc_freq_max_amp pc_freq_max pc_freq_min  pc_knee
## 1        231.8205    7034.352         8.55615   14.973262   0.5347594 14.43850
## 2        441.4112    6963.556        35.06494    1.298701  14.2857143 38.96104
## 3      -1093.5860    7309.920        26.13240   13.240418  99.6515679 99.65157
## 4        754.3316    2934.844        45.55556   98.888889  36.6666667 97.77778
## 5        928.2880    3046.369        51.23457   99.382716   4.9382716 99.38272
##   temp_bw_knee_fc     slope kalman_slope curve_neg curve_pos_start
## 1    -100.0000000  9.518725   -2.5513266 18780.625      -10665.428
## 2     -13.3333333 13.546647    1.0067402  4269.998       -2558.319
## 3       0.6666667  9.657914   -0.6098558 21959.809       -9642.599
## 4       8.0000000 31.432420  -11.7522520  5115.069       -3011.967
## 5      26.6666667 15.689339   -6.2119438 11070.967       -7519.766
##   curve_pos_end mid_offset      snr        hd smoothness
## 1     -8115.197  210.26424 10.98087 -45.04683  19317.698
## 2     -1711.679  -24.81700 11.25016 -46.47707   6670.325
## 3    -12317.210  -18.84431 12.96786 -47.47372  22689.718
## 4     -2103.102  -85.36088 16.29768 -19.99529   5555.658
## 5     -3551.201 -171.87824 19.21994 -19.70549   7701.142
## 
## $data$amp_track
## $data$amp_track[[1]]
##   [1] -67.64561 -68.04297 -68.81717 -69.52790 -69.13716 -67.78528 -65.81486
##   [8] -63.85303 -62.63105 -61.80318 -61.56910 -62.35154 -63.53496 -63.08221
##  [15] -61.57224 -60.69729 -60.27836 -60.64580 -61.31148 -61.93329 -62.51477
##  [22] -63.03248 -63.05638 -63.38618 -63.82979 -63.71268 -64.46835 -66.48777
##  [29] -68.20456 -68.36510 -67.60602 -67.43267 -66.41214 -64.29605 -63.00733
##  [36] -63.89315 -65.13833 -64.50591 -63.10375 -62.99777 -63.53640 -64.42982
##  [43] -65.00449 -65.32656 -64.77245 -64.63091 -64.77359 -65.16642 -65.24940
##  [50] -65.83518 -65.96970 -65.11906 -64.81499 -66.09093 -66.48307 -65.14951
##  [57] -63.22567 -62.32058 -61.85837 -61.43673 -61.51667 -62.02482 -62.76666
##  [64] -63.17390 -63.26074 -62.45737 -60.99854 -60.59539 -61.55849 -62.47356
##  [71] -63.32254 -64.06016 -63.57014 -63.04873 -63.36617 -63.23144 -64.34849
##  [78] -64.75632 -63.93319 -63.63814 -63.90645 -64.58986 -64.96098 -65.74365
##  [85] -67.06206 -67.21551 -67.31348 -68.12841 -68.52968 -68.36130 -68.36768
##  [92] -67.79106 -67.31687 -66.01995 -65.01888 -65.00325 -65.63866 -66.15943
##  [99] -67.12760 -67.90663 -67.80443 -66.48668 -65.69892 -65.40858 -64.84567
## [106] -63.56127 -62.46239 -63.27233 -64.70196 -65.41467 -66.17192 -66.15291
## [113] -66.19233 -65.94849 -66.31434 -66.87598 -66.58965 -65.65452 -64.77545
## [120] -64.73356 -64.28490 -64.60624 -63.86065 -62.98629 -63.42672 -64.31178
## [127] -65.07611 -66.01363 -66.14221 -65.52850 -66.23455 -66.81487 -66.13742
## [134] -65.50698 -65.65048 -66.69811 -67.74499 -67.60838 -67.80822 -67.23549
## [141] -66.28781 -65.48384 -65.69260 -66.19900 -66.70964 -65.74229 -63.68160
## [148] -62.77577 -63.11246 -63.97462 -64.88195 -65.03119 -65.17644 -66.34677
## [155] -67.09383 -67.83711 -67.37544 -65.80660 -65.86990 -66.63372 -67.52577
## [162] -67.75762 -66.83354 -65.62375 -65.04487 -65.59912 -66.55772 -67.68391
## [169] -67.65312 -66.85690 -66.86721 -67.49324 -67.08743 -65.95508 -64.08384
## [176] -62.60856 -62.74116 -63.67335 -65.11797 -65.62513 -65.23968 -65.12458
## [183] -65.37579 -65.21324 -65.35476 -67.07086 -68.69147
## 
## $data$amp_track[[2]]
##  [1] -67.01680 -67.14220 -67.41979 -66.23440 -63.62488 -61.34152 -61.72647
##  [8] -62.27428 -61.63810 -61.26217 -60.78152 -60.46385 -60.80076 -60.38679
## [15] -59.78434 -59.50050 -59.40176 -59.38424 -59.88621 -59.42446 -58.21663
## [22] -57.99644 -57.13049 -55.61020 -54.76245 -54.41771 -54.10305 -53.81302
## [29] -54.60416 -56.26846 -58.47429 -60.07140 -60.49485 -60.50225 -61.55298
## [36] -62.96681 -62.83943 -63.21965 -64.28690 -63.40400 -63.10556 -63.78117
## [43] -62.72644 -60.99603 -59.40956 -58.78217 -59.24980 -59.69155 -58.60972
## [50] -57.05232 -56.69322 -57.26057 -58.01701 -59.11573 -59.90263 -60.07690
## [57] -59.47464 -59.18977 -59.05219 -60.08754 -60.87289 -62.16661 -63.56478
## [64] -64.27647 -64.25597 -61.75161 -59.03473 -57.14548 -55.44025 -54.34482
## [71] -54.27009 -54.61747 -55.36491 -56.82427 -58.30439 -59.87029 -61.17494
## 
## $data$amp_track[[3]]
##   [1] -73.83205 -73.91880 -74.15882 -73.58224 -72.06394 -70.34045 -69.81919
##   [8] -70.05717 -70.48889 -71.08744 -72.20575 -72.26523 -70.60649 -69.06623
##  [15] -68.59400 -67.60421 -66.01138 -64.67195 -64.27160 -64.71724 -64.37512
##  [22] -64.27220 -64.59074 -64.81887 -64.73799 -64.33078 -63.70690 -64.18641
##  [29] -64.73404 -63.88297 -63.48512 -63.98313 -64.56183 -65.47700 -66.31393
##  [36] -66.61758 -67.52527 -67.81458 -68.44652 -69.31326 -69.54538 -70.29790
##  [43] -70.56405 -70.57184 -70.63971 -69.12147 -67.26098 -66.47836 -66.04405
##  [50] -65.53961 -64.21534 -63.46359 -64.45441 -64.90871 -64.55366 -65.01961
##  [57] -64.49430 -63.35768 -63.58351 -64.79233 -65.29443 -65.82354 -66.57384
##  [64] -67.95151 -69.29467 -70.60110 -70.84938 -70.71933 -70.71854 -69.58971
##  [71] -67.93046 -66.03965 -64.53946 -63.70976 -62.45307 -61.54436 -62.51722
##  [78] -63.83958 -65.35122 -66.46850 -67.18261 -68.38351 -68.94420 -69.35669
##  [85] -69.29062 -68.98162 -69.12573 -69.16411 -68.43807 -68.33688 -68.34344
##  [92] -68.43311 -69.51676 -70.49139 -71.76961 -72.23063 -71.51355 -70.04070
##  [99] -68.55742 -67.84460 -67.47652 -65.91997 -65.84838 -65.65942 -64.49779
## [106] -63.53792 -63.30458 -63.70024 -64.71624 -65.65112 -65.05540 -64.25206
## [113] -64.60986 -64.54391 -64.26368 -65.20371 -67.23145 -67.11073 -65.22078
## [120] -64.54927 -65.83148 -66.72061 -66.94112 -68.01663 -68.30961 -67.09860
## [127] -67.01595 -66.20964 -64.37687 -63.84811 -64.49303 -65.37594 -65.69163
## [134] -65.68300 -66.19663 -66.38244 -65.76150 -65.27178 -65.47908 -66.51208
## [141] -66.85432 -67.00247 -67.16355 -68.33912 -68.16338 -67.49978 -67.27492
## [148] -66.10207 -65.15495 -65.99704 -66.93261 -67.09489 -66.66993 -65.72135
## [155] -65.05100 -64.83551 -64.86341 -65.18780 -66.02003 -66.27218 -66.71434
## [162] -66.96145 -67.07397 -67.63175 -68.02149 -68.42623 -68.91954 -68.18471
## [169] -66.83790 -66.76154 -67.35436 -65.77030 -64.09616 -63.33513 -63.65865
## [176] -64.95250 -66.26047 -67.23258 -68.02791 -68.96977 -68.68343 -67.23141
## [183] -66.22437 -66.83235 -66.20640 -65.33237 -65.38104 -66.23863 -67.79489
## [190] -68.57312 -67.82640 -67.10069 -67.89190 -69.04353 -69.77038 -68.27838
## [197] -66.32408 -65.31793 -65.19687 -65.92240 -66.11243 -66.34843 -66.63209
## [204] -66.06375 -65.67829 -65.61715 -66.67955 -67.99978 -69.30729 -70.02598
## [211] -69.66139 -68.96475 -67.01696 -65.76417 -66.09068 -67.30743 -67.27348
## [218] -67.18716 -68.44651 -69.13547 -68.06485 -67.14453 -66.80578 -66.50749
## [225] -66.32678 -66.65522 -65.28070 -64.46542 -65.36538 -66.97373 -67.53183
## [232] -67.54592 -68.63699 -68.61892 -68.39114 -69.23679 -69.46676 -70.28709
## [239] -71.12228 -71.67350 -71.13513 -70.06315 -70.01868 -70.44565 -70.89230
## [246] -72.21823 -73.03301 -73.30679 -72.69577 -71.40609 -71.57442 -72.35716
## [253] -73.53191 -72.84893 -71.59075 -71.59728 -71.25522 -70.37775 -70.67203
## [260] -70.62289 -69.86330 -69.05992 -68.30908 -67.69462 -68.23317 -69.04384
## [267] -70.42378 -71.64499 -72.07735 -72.47404 -72.12866 -70.73980 -69.37943
## [274] -69.29854 -70.51961 -70.80966 -69.75225 -68.93101 -68.66155 -69.03338
## [281] -70.43357 -71.17214 -71.07059 -70.53483 -70.61268 -71.65122 -73.37661
## 
## $data$amp_track[[4]]
##  [1] -37.38107 -37.07099 -37.15170 -37.65609 -36.48378 -33.38499 -30.99349
##  [8] -30.08152 -30.08427 -29.27185 -27.90873 -27.44691 -27.18267 -26.64953
## [15] -25.81629 -25.21630 -24.96293 -25.03371 -25.84718 -26.34615 -26.87145
## [22] -26.67870 -25.93184 -26.34739 -27.44947 -28.94715 -30.89577 -32.20657
## [29] -31.82926 -29.20467 -26.73293 -25.85963 -26.73623 -27.78967 -26.50950
## [36] -25.29750 -25.35063 -25.22054 -24.49088 -23.93539 -23.27183 -22.75703
## [43] -22.84902 -23.24110 -23.49189 -23.23508 -23.44109 -23.95524 -24.41084
## [50] -24.55447 -24.81759 -25.64667 -26.66872 -27.31570 -26.43484 -25.70590
## [57] -25.53073 -25.39656 -25.61777 -26.22051 -27.01610 -27.55495 -28.38743
## [64] -29.55356 -29.55578 -28.65030 -27.95767 -27.62126 -27.61538 -27.66864
## [71] -27.58822 -27.69437 -27.41698 -27.38411 -27.40538 -27.95099 -29.33989
## [78] -30.52184 -31.21975 -32.27513 -33.49024 -34.46420 -34.71283 -35.06952
## [85] -35.63447 -34.41913 -32.43263 -31.96999 -33.44393 -34.75105
## 
## $data$amp_track[[5]]
##   [1] -30.78374 -30.10980 -28.95008 -28.61159 -27.96135 -26.29925 -25.01564
##   [8] -24.13161 -24.39393 -25.33541 -26.11511 -26.23924 -25.61759 -25.48472
##  [15] -24.77450 -24.97299 -25.01942 -24.89702 -24.50631 -23.44099 -22.52922
##  [22] -22.60557 -23.05617 -22.64724 -22.21561 -22.00227 -22.57258 -22.99944
##  [29] -23.33619 -21.99331 -20.28049 -19.11338 -18.28031 -18.74578 -19.43897
##  [36] -19.58456 -19.47089 -19.59581 -20.92887 -22.02574 -21.22497 -20.43555
##  [43] -20.19178 -20.63287 -21.26570 -21.29628 -20.11062 -19.04334 -18.64526
##  [50] -19.58116 -20.94948 -21.73299 -22.24307 -23.54765 -24.40851 -23.07567
##  [57] -21.64721 -21.46837 -21.66051 -20.30214 -19.71746 -20.69280 -20.49079
##  [64] -20.10914 -20.11664 -20.02293 -19.98332 -19.89379 -18.91540 -17.49970
##  [71] -16.84303 -16.65611 -16.15924 -16.05505 -15.95807 -15.37998 -15.08729
##  [78] -15.21490 -15.31301 -15.07229 -14.84353 -14.73110 -14.35170 -14.24620
##  [85] -14.59230 -15.35890 -16.06679 -16.31010 -16.44753 -16.61325 -17.06579
##  [92] -17.44760 -17.72270 -18.30961 -18.86375 -19.19215 -19.18866 -19.14960
##  [99] -19.67346 -20.65972 -21.08067 -21.08339 -20.90769 -20.21035 -19.50087
## [106] -18.91986 -18.29900 -17.66722 -17.38322 -16.92464 -16.41770 -16.20852
## [113] -16.10500 -16.37259 -16.84766 -17.21393 -17.54290 -18.40021 -19.37004
## [120] -20.08035 -20.41331 -20.23638 -20.25469 -20.72767 -20.72095 -20.24601
## [127] -20.11225 -20.15440 -19.87942 -19.64589 -19.74095 -20.14163 -20.83476
## [134] -21.74046 -22.91808 -24.39168 -25.58938 -26.83831 -27.93561 -29.32227
## [141] -31.06822 -31.14251 -31.24197 -31.70999 -30.62217 -29.77583 -29.85206
## [148] -30.93503 -31.31374 -31.84579 -32.46980 -32.20098 -31.21243 -29.75834
## [155] -28.53082 -27.82086 -27.89036 -27.38044 -26.89086 -27.28012 -28.61720
## [162] -30.65236
## 
## 
## $data$freq_track
## $data$freq_track[[1]]
##   [1] 6709.934 6698.564 6919.699 7252.447 7126.477 7016.679 6937.651 6882.102
##   [9] 6829.561 6794.763 6773.320 6785.849 6867.900 6869.424 6910.092 6932.387
##  [17] 6909.949 6951.045 6964.413 6950.695 6924.977 6859.345 6856.153 6867.122
##  [25] 6920.575 6998.133 6966.912 7491.669 7885.231 7615.074 7484.054 7332.424
##  [33] 7206.100 7149.503 7129.328 7263.056 7100.265 7000.761 6967.138 6994.022
##  [41] 7066.611 7171.091 7307.749 7437.075 7348.031 7272.259 7461.048 7552.692
##  [49] 7567.342 7539.784 7610.796 7715.776 7693.871 7486.111 7375.989 7339.610
##  [57] 7216.630 7180.114 7138.610 7126.677 7346.624 7517.317 7645.774 7739.359
##  [65] 7793.335 7552.827 7428.636 7324.523 7493.652 7627.216 7729.392 7793.572
##  [73] 7609.915 7456.097 7323.408 7409.919 7384.937 7347.369 7226.930 7179.454
##  [81] 7157.032 7279.796 7426.465 7627.553 7382.356 7197.281 7058.097 7054.544
##  [89] 7110.837 7244.689 7214.342 7141.811 7088.571 7105.282 7349.450 7518.730
##  [97] 7631.059 7733.847 7715.565 7634.797 7682.024 7658.692 7592.281 7541.267
## [105] 7402.036 7314.261 7252.117 7247.388 7249.443 7249.191 7312.686 7596.918
## [113] 7755.047 7632.503 7532.087 7703.577 7536.322 7558.311 7572.907 7574.195
## [121] 7447.630 7357.321 7328.703 7209.921 7080.093 7414.284 7622.265 7672.407
## [129] 7483.424 7373.236 7246.823 7264.522 7310.345 7306.232 7234.631 7145.129
## [137] 7422.984 7433.800 7306.193 7380.433 7491.237 7579.061 7604.388 7519.593
## [145] 7558.344 7386.699 7295.793 7216.112 7134.673 7363.933 7527.841 7404.469
## [153] 7369.726 7434.879 7473.511 7625.284 7719.977 7497.963 7632.293 7639.531
## [161] 7448.203 7224.095 7072.612 6958.791 6897.490 7057.902 7161.242 7384.815
## [169] 7541.182 7549.993 7565.397 7526.587 7317.028 7304.351 7330.095 7341.375
## [177] 7321.038 7259.848 7107.901 7059.970 7098.817 7190.869 7409.873 7329.506
## [185] 7305.569 7202.240 7256.392
## 
## $data$freq_track[[2]]
##  [1] 7459.671 7474.057 7312.439 7140.469 7042.244 6991.793 6981.138 7100.238
##  [9] 7050.720 6917.830 6814.316 6778.663 6992.316 7163.271 7149.979 7118.815
## [17] 7040.163 7009.380 7064.868 7057.532 7005.782 6916.548 6899.863 6934.569
## [25] 6952.919 6929.406 6921.617 6912.532 6941.315 6983.518 7401.058 7328.384
## [33] 7275.223 7173.556 7112.106 7107.000 7144.396 7074.096 7087.875 7123.925
## [41] 7073.953 7028.349 7030.782 7031.091 6974.334 6952.997 6984.440 6943.544
## [49] 6929.291 6966.345 6959.646 7181.609 7330.813 7114.824 7001.351 7158.316
## [57] 7230.566 7228.198 7215.429 7133.799 7313.847 7141.141 7024.037 7002.131
## [65] 7217.597 7134.659 7069.324 7048.884 7040.530 6989.919 6940.966 6973.042
## [73] 7044.533 6991.522 6919.649 6842.781 6805.634
## 
## $data$freq_track[[3]]
##   [1] 6869.445 6918.665 7038.942 7043.878 7038.967 6994.742 6949.842 6937.330
##   [9] 7066.234 7154.540 7342.561 7276.757 7181.448 7101.043 7071.313 7065.577
##  [17] 7062.322 7102.322 7085.499 7075.768 7124.490 7155.334 7223.027 7272.670
##  [25] 7307.996 7292.717 7324.908 7387.749 7356.639 7365.073 7337.889 7267.091
##  [33] 7182.386 7248.847 7262.484 7202.020 7127.174 7510.248 7785.613 7573.596
##  [41] 7739.019 7679.868 7512.089 7599.812 7743.044 7663.644 7557.850 7471.612
##  [49] 7410.378 7311.986 7251.437 7246.017 7156.656 7196.939 7258.216 7211.691
##  [57] 7212.380 7179.046 7194.055 7181.291 7203.971 7214.085 7290.372 7520.652
##  [65] 7403.841 7286.981 7423.912 7537.748 7368.250 7335.637 7267.392 7267.561
##  [73] 7216.197 7215.064 7213.054 7215.593 7143.274 7282.655 7187.085 7161.185
##  [81] 7145.020 7093.089 7092.747 7034.246 7012.961 7046.714 7060.409 7418.327
##  [89] 7483.542 7555.848 7575.875 7537.802 7534.006 7567.663 7495.533 7739.328
##  [97] 7650.557 7635.447 7590.701 7454.005 7488.822 7471.956 7422.578 7529.174
## [105] 7555.317 7556.485 7563.389 7525.480 7421.650 7340.152 7407.735 7478.057
## [113] 7520.578 7486.009 7418.278 7371.150 7309.820 7336.059 7308.466 7296.531
## [121] 7189.610 7365.968 7431.722 7497.219 7538.135 7510.239 7570.645 7442.867
## [129] 7391.777 7301.185 7271.467 7208.344 7213.275 7168.006 7107.915 7106.200
## [137] 7140.790 7118.072 7107.667 7243.605 7304.303 7328.529 7310.209 7339.626
## [145] 7277.470 7270.298 7213.747 7230.452 7291.497 7334.986 7256.270 7256.776
## [153] 7198.802 7215.152 7155.722 7132.016 7110.439 7061.921 7024.364 6995.639
## [161] 7014.801 6986.674 7019.572 7031.314 7040.202 7110.885 7160.105 7238.184
## [169] 7295.617 7332.352 7360.546 7336.757 7266.378 7252.123 7190.311 7102.840
## [177] 6992.248 6995.350 7068.215 7174.928 7180.259 7208.933 7279.088 7232.669
## [185] 7244.674 7241.578 7236.556 7194.444 7452.703 7392.068 7299.600 7286.637
## [193] 7195.914 7565.252 7592.456 7588.980 7634.233 7666.399 7599.735 7415.449
## [201] 7278.997 7274.389 7359.768 7479.005 7558.972 7525.923 7317.728 7212.650
## [209] 7511.236 7692.042 7523.349 7455.673 7495.228 7520.004 7534.412 7510.852
## [217] 7477.275 7421.393 7396.047 7464.529 7511.891 7546.468 7569.907 7576.540
## [225] 7579.782 7539.973 7498.591 7438.124 7398.257 7328.245 7412.184 7462.996
## [233] 7504.566 7445.298 7442.515 7423.407 7332.322 7299.431 7301.850 7290.763
## [241] 7239.939 7304.321 7342.310 7264.630 7254.436 7349.287 7183.168 7113.466
## [249] 7297.408 7378.672 7483.815 7529.167 7664.458 7557.470 7434.180 7346.419
## [257] 7465.970 7517.425 7538.195 7522.635 7485.444 7421.518 7430.705 7477.226
## [265] 7480.420 7479.359 7434.758 7352.518 7366.049 7431.892 7538.286 7545.265
## [273] 7552.716 7576.359 7575.099 7445.413 7347.503 7280.726 7218.997 7138.656
## [281] 7085.317 7085.079 7090.797 7075.984 7020.977 7031.319 5937.733
## 
## $data$freq_track[[4]]
##  [1] 2776.030 2790.344 2854.673 2739.606 2690.835 2708.685 2702.876 2709.356
##  [9] 2767.305 2841.764 2868.946 2881.150 2830.713 2806.016 2793.230 2719.804
## [17] 2717.050 2674.200 2678.301 2648.282 2632.523 2615.462 2587.796 2614.025
## [25] 2631.849 2715.235 2791.735 2682.941 2608.830 2642.294 2615.549 2645.510
## [33] 2627.824 2574.225 2610.311 2640.862 2712.693 2771.920 2809.171 2876.571
## [41] 2926.802 2931.387 2962.119 3006.599 3029.411 2998.087 2974.379 2958.170
## [49] 2991.671 2980.191 2965.448 2953.071 2993.684 3019.062 2989.606 2963.480
## [57] 2944.890 2938.478 2940.618 2945.235 2987.965 3016.281 3042.711 3066.195
## [65] 3066.427 3067.804 3072.648 3086.969 3133.802 3126.104 3108.230 3098.867
## [73] 3089.536 3089.958 3100.071 3090.030 3097.603 3113.918 3109.780 2972.438
## [81] 3520.047 3361.830 3280.939 3276.237 3289.946 3153.536 3049.823 3015.900
## [89] 3851.935 4460.171
## 
## $data$freq_track[[5]]
##   [1] 2463.725 2473.639 2485.382 2469.697 2454.291 2419.523 2389.039 2347.862
##   [9] 2329.643 2639.644 2909.045 3109.289 3251.762 3316.358 3036.725 3201.439
##  [17] 2961.820 2806.900 2687.891 2653.603 2584.045 2538.568 2557.235 2512.303
##  [25] 2517.375 2528.806 2578.946 2684.494 2697.003 2715.642 2672.277 2674.903
##  [33] 2639.592 2585.697 2523.757 2521.867 2520.325 2479.159 2430.386 2401.454
##  [41] 2400.649 2439.977 2457.121 2447.721 2471.473 2498.847 2556.896 2590.625
##  [49] 2634.324 2634.373 2717.726 2719.151 2728.145 2787.033 2746.807 2793.553
##  [57] 2739.155 2703.631 2747.661 2735.002 2737.985 2657.908 2684.049 2736.620
##  [65] 2793.527 2831.221 2896.540 2955.206 2994.300 3012.796 3039.534 3056.411
##  [73] 3073.930 3088.366 3097.700 3098.221 3087.332 3082.492 3082.255 3076.427
##  [81] 3078.040 3072.088 3030.188 3001.753 2983.754 2972.723 2957.797 2949.923
##  [89] 2946.932 2947.177 2985.200 3025.052 3046.659 3070.041 3089.280 3086.512
##  [97] 3087.269 3083.416 3046.560 3065.924 3117.291 3155.490 3140.783 3121.932
## [105] 3107.469 3106.448 3116.055 3148.671 3145.386 3131.068 3109.458 3093.792
## [113] 3093.327 3100.052 3140.793 3134.786 3117.412 3113.910 3093.647 3089.853
## [121] 3094.395 3095.803 3145.115 3171.826 3147.702 3089.512 3087.916 3105.310
## [129] 3111.744 3148.470 3142.733 3130.248 3119.005 3117.266 3162.360 3180.978
## [137] 3145.346 3185.255 3200.429 3270.550 3039.938 2968.551 2909.505 2953.883
## [145] 2997.159 3035.134 3055.398 3128.573 2931.329 2826.652 2809.530 2891.729
## [153] 3000.970 3073.043 3088.245 3087.685 3098.218 3140.328 3165.667 3192.476
## [161] 3178.884 4024.091
## 
## 
## $data$event_start
## [1] 1857953 1878465 2219297 2398209 2746497
## 
## $data$event_end
## [1] 1863936 1880928 2228480 2401088 2751680
## 
## 
## attr(,"class")
## [1] "threshold_detection"

The auto_detec function automatically detects the start and end of vocalizations in sound files based on amplitude, duration, and frequency range attributes.

#let's look at the parameters of the function first"
?auto_detec
detection <- auto_detec(threshold = 5, ssmooth = 300, bp = c(2, 9), wl = 300, path = getwd())

## Warning: This function will be deprecated in future warbleR versions, please
## look at the ohun package for automatic signal detection functions
## (https://marce10.github.io/ohun/index.html)

## Detecting signals in sound files:

detection

##                         sound.files     duration selec        start         end
## 1                           mgr.wav 5.007161e-02     1   0.09778263   0.1478542
## 2                           mgr.wav 2.750988e-02     2   0.20232925   0.2298391
## 3                           mgr.wav 9.079168e-05     3   0.23487807   0.2349689
## 4                           mgr.wav 3.195867e-02     4   0.25843850   0.2903972
## 5                           mgr.wav 4.539584e-05     5   0.29048797   0.2905334
## 6                           mgr.wav 1.674198e-01     6   0.35340660   0.5208264
## 7                           mgr.wav 1.302861e-02     7   0.53385505   0.5468837
## 8                           mgr.wav 1.145791e-01     8   0.58347270   0.6980518
## 9                           mgr.wav 7.898876e-03     9   0.72869399   0.7365929
## 10                          mgr.wav 1.684186e-01    10   0.96502472   1.1334433
## 11                          mgr.wav 3.659812e-01    11   1.30090853   1.6668898
## 12                          mgr.wav 4.539584e-05    12   1.66911417   1.6691596
## 13                          mgr.wav 8.697843e-02    13   1.66920496   1.7561834
## 14                          mgr.wav 4.539584e-05    14   1.75622878   1.7562742
## 15                          mgr.wav 5.629084e-03    15   1.75890713   1.7645362
## 16                          mgr.wav 1.202990e-02    16   1.76880343   1.7808333
## 17                          mgr.wav 3.177709e-04    17   1.78096951   1.7812873
## 18                          mgr.wav 1.361875e-04    18   1.78155966   1.7816958
## 19                          mgr.wav 1.656948e-02    19   1.80425758   1.8208271
## 20                          mgr.wav 1.305494e+00    20   1.88224762   3.1877411
## 21                         mgr2.wav 6.423240e-02     1   0.09471557   0.1589480
## 22                         mgr2.wav 6.173750e-02     2   0.24595203   0.3076895
## 23                         mgr2.wav 2.249948e-02     3   0.40313088   0.4256304
## 24                         mgr2.wav 5.252904e-02     4   0.43166350   0.4841925
## 25                         mgr2.wav 2.662741e-02     5   0.55101056   0.5776380
## 26                         mgr2.wav 7.992760e-02     6   0.58929597   0.6692236
## 27                         mgr2.wav 4.622374e-02     7   0.73195903   0.7781828
## 28                         mgr2.wav 5.379917e-02     8   0.79805127   0.8518504
## 29                         mgr2.wav 8.165135e-04     9   0.85244014   0.8532567
## 30                         mgr2.wav 1.388073e-02    10   0.88119956   0.8950803
## 31                         mgr2.wav 9.934248e-02    11   0.92070975   1.0200522
## 32                         mgr2.wav 3.683383e-02    12   1.11989369   1.1567275
## 33                         mgr2.wav 9.752801e-02    13   1.16920204   1.2667300
## 34                         mgr2.wav 1.707874e-01    14   1.37029118   1.5410786
## 35                         mgr2.wav 4.536186e-05    15   1.54112396   1.5411693
## 36                         mgr2.wav 7.180783e-02    16   1.60676257   1.6785704
## 37                         mgr2.wav 8.228642e-02    17   1.70007193   1.7823583
## 38                         mgr2.wav 9.816307e-02    18   1.84078443   1.9389475
## 39                         mgr2.wav 1.149470e-01    19   1.99506013   2.1100071
## 40                         mgr2.wav 1.360856e-04    20   2.12665490   2.1267910
## 41                         mgr2.wav 5.193933e-02    21   2.13377671   2.1857160
## 42                         mgr2.wav 8.323902e-02    22   2.27929757   2.3625366
## 43                         mgr2.wav 9.072373e-05    23   2.36258195   2.3626727
## 44                         mgr2.wav 2.640060e-02    24   2.41089233   2.4372929
## 45                         mgr2.wav 5.085065e-02    25   2.44985817   2.5007088
## 46                         mgr2.wav 1.216605e-01    26   2.57709820   2.6987587
## 47                         mgr2.wav 7.870283e-02    27   2.77728011   2.8559829
## 48   Strepera-versicolor-571957.mp3 2.342522e-01     1   3.03286120   3.2671134
## 49   Strepera-versicolor-571957.mp3 1.777516e-01     2   3.28803021   3.4657818
## 50   Strepera-versicolor-571957.mp3 1.402096e-02     3   3.46584434   3.4798653
## 51   Strepera-versicolor-571957.mp3 8.812581e-03     4   3.48659453   3.4954071
## 52   Strepera-versicolor-571957.mp3 1.195844e-02     5   3.50226134   3.5142198
## 53   Strepera-versicolor-571957.mp3 3.125029e-04     6   3.52224069   3.5225532
## 54   Strepera-versicolor-571957.mp3 8.333410e-05     7   3.52257403   3.5226574
## 55   Strepera-versicolor-571957.mp3 7.500069e-04     8   3.52363654   3.5243865
## 56   Strepera-versicolor-571957.mp3 2.083352e-05     9   3.52444905   3.5244699
## 57   Strepera-versicolor-571957.mp3 5.562551e-03    10   3.53926168   3.5448242
## 58   Strepera-versicolor-571957.mp3 2.673358e-01    11   3.56530359   3.8326394
## 59   Strepera-versicolor-571957.mp3 9.250085e-03    12   3.83938944   3.8486395
## 60   Strepera-versicolor-571957.mp3 6.250057e-05    13   3.85005621   3.8501187
## 61   Strepera-versicolor-571957.mp3 2.191478e-01    14   3.85016037   4.0693082
## 62   Strepera-versicolor-571957.mp3 3.104195e-03    15   4.10153768   4.1046419
## 63   Strepera-versicolor-571957.mp3 6.354225e-03    16   4.15053813   4.1568924
## 64   Strepera-versicolor-571957.mp3 2.315230e-01    17  19.98195442  20.2134774
## 65   Strepera-versicolor-571957.mp3 1.083343e-03    18  20.21781075  20.2188941
## 66   Strepera-versicolor-571957.mp3 1.458347e-04    19  20.21991494  20.2200608
## 67   Strepera-versicolor-571957.mp3 1.666682e-04    20  20.22014411  20.2203108
## 68   Strepera-versicolor-571957.mp3 6.250057e-05    21  20.22037328  20.2204358
## 69   Strepera-versicolor-571957.mp3 2.500023e-04    22  20.22108162  20.2213316
## 70   Strepera-versicolor-571957.mp3 2.314605e-02    23  20.22162329  20.2447693
## 71   Strepera-versicolor-571957.mp3 1.971060e-01    24  20.24701935  20.4441253
## 72   Strepera-versicolor-571957.mp3 1.750016e-02    25  20.44977122  20.4672714
## 73   Strepera-versicolor-571957.mp3 4.208372e-03    26  20.48277152  20.4869799
## 74   Strepera-versicolor-571957.mp3 1.145844e-03    27  20.50379255  20.5049384
## 75   Strepera-versicolor-571957.mp3 2.235854e-01    28  20.52177188  20.7453573
## 76   Strepera-versicolor-571957.mp3 1.333346e-03    29  20.75821155  20.7595449
## 77   Strepera-versicolor-571957.mp3 8.333410e-05    30  20.75960740  20.7596907
## 78   Strepera-versicolor-571957.mp3 1.308345e-02    31  20.76077407  20.7738575
## 79   Strepera-versicolor-571957.mp3 1.487514e-02    32  20.77621172  20.7910869
## 80   Strepera-versicolor-571957.mp3 2.083352e-05    33  20.79825359  20.7982744
## 81   Strepera-versicolor-571957.mp3 1.893142e-01    34  20.79833692  20.9876512
## 82   Strepera-versicolor-571957.mp3 6.500060e-03    35  20.99029702  20.9967971
## 83   Strepera-versicolor-571957.mp3 1.102093e-02    36  21.00350547  21.0145264
## 84   Strepera-versicolor-571957.mp3 7.770905e-03    37  21.02060980  21.0283807
## 85   Strepera-versicolor-571957.mp3 2.672941e-02    38  21.03381825  21.0605477
## 86   Strepera-versicolor-571957.mp3 8.333410e-05    39  21.08425621  21.0843395
## 87   Strepera-versicolor-571957.mp3 2.166687e-03    40  21.08440205  21.0865687
## 88   Strepera-versicolor-571957.mp3 4.166705e-05    41  21.08661040  21.0866521
## 89   Strepera-versicolor-571957.mp3 2.331896e-01    42  32.83038496  33.0635746
## 90   Strepera-versicolor-571957.mp3 1.458347e-04    43  33.06361627  33.0637621
## 91   Strepera-versicolor-571957.mp3 6.250057e-05    44  33.06380378  33.0638663
## 92   Strepera-versicolor-571957.mp3 4.166705e-05    45  33.06401211  33.0640538
## 93   Strepera-versicolor-571957.mp3 4.687543e-03    46  33.06415795  33.0688455
## 94   Strepera-versicolor-571957.mp3 8.333410e-05    47  33.06888716  33.0689705
## 95   Strepera-versicolor-571957.mp3 1.129177e-02    48  33.06922049  33.0805123
## 96   Strepera-versicolor-571957.mp3 8.333410e-05    49  33.08511647  33.0851998
## 97   Strepera-versicolor-571957.mp3 2.147311e-01    50  33.08522064  33.2999518
## 98   Strepera-versicolor-571957.mp3 9.208418e-03    51  33.30076429  33.3099727
## 99   Strepera-versicolor-571957.mp3 6.250057e-05    52  33.32101447  33.3210770
## 100  Strepera-versicolor-571957.mp3 9.166751e-04    53  33.32109781  33.3220145
## 101  Strepera-versicolor-571957.mp3 1.416680e-03    54  33.33307708  33.3344938
## 102  Strepera-versicolor-571957.mp3 6.250057e-05    55  33.33663962  33.3367021
## 103  Strepera-versicolor-571957.mp3 4.062537e-03    56  33.34391052  33.3479731
## 104  Strepera-versicolor-571957.mp3 1.041676e-04    57  33.34799389  33.3480981
## 105  Strepera-versicolor-571957.mp3 6.250057e-05    58  33.34818139  33.3482439
## 106  Strepera-versicolor-571957.mp3 2.229187e-03    59  33.34849389  33.3507231
## 107  Strepera-versicolor-571957.mp3 2.348563e-01    60  33.37397329  33.6088296
## 108  Strepera-versicolor-571957.mp3 2.316688e-02    61  33.62101723  33.6441841
## 109  Strepera-versicolor-571957.mp3 6.250057e-05    62  33.64437161  33.6444341
## 110  Strepera-versicolor-571957.mp3 4.166705e-05    63  33.64455911  33.6446008
## 111  Strepera-versicolor-571957.mp3 2.083352e-04    64  33.64466328  33.6448716
## 112  Strepera-versicolor-571957.mp3 2.083352e-05    65  33.64501745  33.6450383
## 113  Strepera-versicolor-571957.mp3 1.887517e-01    66  33.64720497  33.8359567
## 114  Strepera-versicolor-571957.mp3 2.885443e-02    67  33.83897756  33.8678320
## 115  Strepera-versicolor-571957.mp3 6.250057e-05    68  33.86785283  33.8679153
## 116  Strepera-versicolor-571957.mp3 1.970851e-02    69  33.88301964  33.9027282
## 117  Strepera-versicolor-571957.mp3 5.875054e-03    70  33.92362418  33.9294992
## 118  Strepera-versicolor-571957.mp3 6.104223e-03    71  33.96847875  33.9745830
## 119  Strepera-versicolor-571957.mp3 2.435856e-01    72  49.64043524  49.8840208
## 120  Strepera-versicolor-571957.mp3 2.216479e-01    73  49.89012504  50.1117729
## 121  Strepera-versicolor-571957.mp3 1.250011e-04    74  50.11179374  50.1119187
## 122  Strepera-versicolor-571957.mp3 2.083352e-05    75  50.11218958  50.1122104
## 123  Strepera-versicolor-571957.mp3 2.337521e-02    76  50.11237708  50.1357523
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## 409  Strepera-versicolor-696120.mp3 2.083337e-05    67 128.83062739 128.8306482
## 410  Strepera-versicolor-696120.mp3 1.269585e-01    68 128.83071072 128.9576693
## 411  Strepera-versicolor-696120.mp3 9.166682e-04    69 128.95958593 128.9605026
## 412  Strepera-versicolor-696120.mp3 1.314585e-02    70 128.96310677 128.9762526
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## 414  Strepera-versicolor-696120.mp3 1.250002e-04    72 129.00289850 129.0030235
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## 418  Strepera-versicolor-696120.mp3 2.500004e-04    76 129.44602423 129.4462742
## 419  Strepera-versicolor-696120.mp3 2.083337e-05    77 129.44871173 129.4487326
## 420  Strepera-versicolor-696120.mp3 1.941670e-02    78 129.44881590 129.4682326
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## 429  Strepera-versicolor-696120.mp3 1.250002e-04    87 183.32379985 183.3239249
## 430  Strepera-versicolor-696120.mp3 2.500004e-03    88 248.38278127 248.3852813
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## 434  Strepera-versicolor-696120.mp3 1.729586e-01    92 261.31917743 261.4921360
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## 522  Strepera-versicolor-729330.mp3 9.070459e-05    25  12.68916422  12.6892549
## 523  Strepera-versicolor-729330.mp3 6.802844e-05    26  12.68964042  12.6897084
## 524  Strepera-versicolor-729330.mp3 3.288041e-03    27  12.68979915  12.6930872
## 525  Strepera-versicolor-729330.mp3 1.696176e-02    28  12.77410907  12.7910708
## 526  Strepera-versicolor-729330.mp3 1.388914e-01    29  14.33858187  14.4774733
## 527  Strepera-versicolor-729330.mp3 2.267615e-05    30  14.47799482  14.4780175
## 528  Strepera-versicolor-729330.mp3 2.473287e-01    31  14.47810820  14.7254369
## 529  Strepera-versicolor-729330.mp3 3.900297e-03    32  14.74725140  14.7511517
## 530  Strepera-versicolor-729330.mp3 4.900316e-02    33  19.68720488  19.7362080
## 531  Strepera-versicolor-729330.mp3 1.882120e-03    34  19.73648015  19.7383623
## 532  Strepera-versicolor-729330.mp3 3.700747e-02    35  19.74430342  19.7813109
## 533  Strepera-versicolor-729330.mp3 3.129082e-01    36  19.78756951  20.1004777
## 534  Strepera-versicolor-729330.mp3 4.988753e-04    37  21.64370292  21.6442018
## 535  Strepera-versicolor-729330.mp3 4.535230e-05    38  21.64424715  21.6442925
## 536  Strepera-versicolor-729330.mp3 9.297221e-04    39  21.64467800  21.6456077
## 537  Strepera-versicolor-729330.mp3 6.802844e-05    40  21.64565307  21.6457211
## 538  Strepera-versicolor-729330.mp3 2.494376e-04    41  21.64581181  21.6460612
## 539  Strepera-versicolor-729330.mp3 6.802844e-05    42  21.64728576  21.6473538
## 540  Strepera-versicolor-729330.mp3 6.802844e-05    43  21.64744449  21.6475125
## 541  Strepera-versicolor-729330.mp3 8.934402e-03    44  21.64753519  21.6564696
## 542  Strepera-versicolor-729330.mp3 2.267615e-05    45  22.87039182  22.8704145
## 543  Strepera-versicolor-729330.mp3 1.859444e-03    46  22.87045985  22.8723193
## 544  Strepera-versicolor-729330.mp3 6.802844e-05    47  22.87265944  22.8727275
## 545  Strepera-versicolor-729330.mp3 8.843698e-03    48  22.87606086  22.8849046
## 546  Strepera-versicolor-729330.mp3 4.474004e-02    49  23.07756111  23.1223012
## 547  Strepera-versicolor-729330.mp3 1.564654e-03    50  23.12914935  23.1307140
## 548  Strepera-versicolor-729330.mp3 3.691677e-02    51  23.13164372  23.1685605
## 549  Strepera-versicolor-729330.mp3 3.017288e-01    52  23.17620235  23.4779312
## 550  Strepera-versicolor-729330.mp3 1.383245e-03    53  23.47881555  23.4801988
## 551  Strepera-versicolor-729330.mp3 6.802844e-05    54  23.48085640  23.4809244
## 552  Strepera-versicolor-729330.mp3 1.473950e-03    55  23.48099246  23.4824664
## 553  Strepera-versicolor-729330.mp3 5.111204e-02    56  26.74327381  26.7943858
## 554  Strepera-versicolor-729330.mp3 3.201872e-02    57  26.80502096  26.8370397
## 555  Strepera-versicolor-729330.mp3 6.802844e-05    58  26.83710771  26.8371757
## 556  Strepera-versicolor-729330.mp3 1.133807e-04    59  26.84025969  26.8403731
## 557  Strepera-versicolor-729330.mp3 9.070459e-05    60  26.84044110  26.8405318
## 558  Strepera-versicolor-729330.mp3 4.943400e-03    61  26.84064519  26.8455886
## 559  Strepera-versicolor-729330.mp3 4.535230e-05    62  26.84590605  26.8459514
## 560  Strepera-versicolor-729330.mp3 2.707986e-01    63  26.85132565  27.1221242
## 561  Strepera-versicolor-729330.mp3 1.133807e-04    64  27.12241900  27.1225324
## 562  Strepera-versicolor-729330.mp3 2.383263e-02    65  27.12284985  27.1466825
## 563  Strepera-versicolor-729330.mp3 9.070459e-05    66  27.14681853  27.1469092
## 564  Strepera-versicolor-729330.mp3 4.535230e-05    67  27.14704530  27.1470906
## 565  Strepera-versicolor-729330.mp3 7.029606e-04    68  27.14808840  27.1487914
## 566  Strepera-versicolor-729330.mp3 4.308468e-03    69  27.74750969  27.7518182
## 567  Strepera-versicolor-729330.mp3 7.732566e-03    70  27.80710261  27.8148352
## 568  Strepera-versicolor-729330.mp3 1.158071e-01    71  27.82921185  27.9450189
## 569  Strepera-versicolor-729330.mp3 1.746063e-02    72  28.03932904  28.0567897
## 570  Strepera-versicolor-729330.mp3 1.587330e-04    73  28.05685770  28.0570164
## 571  Strepera-versicolor-729330.mp3 1.337893e-03    74  28.05726587  28.0586038
## 572  Strepera-versicolor-729330.mp3 1.360569e-04    75  28.05946546  28.0596015
## 573  Strepera-versicolor-729330.mp3 7.142987e-03    76  28.05964687  28.0667899
## 574  Strepera-versicolor-729330.mp3 5.399191e-02    77  30.29791873  30.3519106
## 575  Strepera-versicolor-729330.mp3 2.267615e-05    78  30.35202402  30.3520467
## 576  Strepera-versicolor-729330.mp3 4.761991e-04    79  30.35463177  30.3551080
## 577  Strepera-versicolor-729330.mp3 2.841321e-02    80  30.35900827  30.3874215
## 578  Strepera-versicolor-729330.mp3 9.251868e-03    81  30.39132178  30.4005737
## 579  Strepera-versicolor-729330.mp3 2.267615e-05    82  30.40093647  30.4009591
## 580  Strepera-versicolor-729330.mp3 6.802844e-05    83  30.40104985  30.4011179
## 581  Strepera-versicolor-729330.mp3 2.985995e-01    84  30.40785269  30.7064522
## 582  Strepera-versicolor-729330.mp3 1.149681e-02    85  30.71343646  30.7249333
## 583  Strepera-versicolor-729330.mp3 8.798345e-03    86  30.73091977  30.7397181
## 584  Strepera-versicolor-729330.mp3 1.133807e-04    87  30.77575052  30.7758639
## 585  Strepera-versicolor-729330.mp3 9.070459e-05    88  30.77599996  30.7760907
## 586  Strepera-versicolor-729330.mp3 6.802844e-05    89  30.77622672  30.7762947
## 587  Strepera-versicolor-729330.mp3 3.174661e-04    90  30.77638545  30.7767029
## 588  Strepera-versicolor-729330.mp3 6.802844e-05    91  32.86463191  32.8646999
## 589  Strepera-versicolor-729330.mp3 9.750744e-04    92  32.86474529  32.8657204
## 590  Strepera-versicolor-729330.mp3 1.136075e-02    93  34.06460831  34.0759691
## 591  Strepera-versicolor-729330.mp3 6.326645e-03    94  34.09905338  34.1053800
## 592  Strepera-versicolor-729330.mp3 7.709890e-03    95  34.15998419  34.1676941
## 593  Strepera-versicolor-729330.mp3 1.292540e-03    96  34.16792084  34.1692134
## 594  Strepera-versicolor-729330.mp3 6.802844e-05    97  34.16925873  34.1693268
## 595  Strepera-versicolor-729330.mp3 3.133844e-02    98  34.18297780  34.2143162
## 596  Strepera-versicolor-729330.mp3 4.535230e-05    99  34.21653850  34.2165839
## 597  Strepera-versicolor-729330.mp3 2.462630e-02   100  34.21667456  34.2413009
## 598  Strepera-versicolor-729330.mp3 9.070459e-05   101  34.24134621  34.2414369
## 599  Strepera-versicolor-729330.mp3 5.269937e-02   102  34.24390861  34.2966080
## 600  Strepera-versicolor-729330.mp3 3.151985e-03   103  34.29996405  34.3031160
## 601  Strepera-versicolor-729330.mp3 4.761991e-04   104  34.30456731  34.3050435
## 602  Strepera-versicolor-729330.mp3 4.557906e-03   105  34.33679011  34.3413480
## 603  Strepera-versicolor-729330.mp3 5.013696e-02   106  34.38289072  34.4330277
## 604  Strepera-versicolor-729330.mp3 4.535230e-05   107  34.43309571  34.4331411
## 605  Strepera-versicolor-729330.mp3 6.802844e-05   108  36.52526515  36.5253332
## 606  Strepera-versicolor-729330.mp3 5.986503e-03   109  36.52540121  36.5313877
## 607  Strepera-versicolor-729330.mp3 8.866374e-03   110  36.54075296  36.5496193
## 608  Strepera-versicolor-729330.mp3 4.580582e-03   111  36.59592403  36.6005046
## 609  Strepera-versicolor-729330.mp3 3.460380e-02   112  36.62549373  36.6600975
## 610  Strepera-versicolor-729330.mp3 3.401422e-03   113  36.66844235  36.6718438
## 611  Strepera-versicolor-729330.mp3 3.124773e-02   114  36.70347700  36.7347247
## 612  Strepera-versicolor-729330.mp3 1.587330e-04   115  37.00547794  37.0056367
## 613  Strepera-versicolor-729330.mp3 6.621435e-03   116  37.00568202  37.0123035
## 614  Strepera-versicolor-729330.mp3 9.070459e-05   117  37.03130607  37.0313968
## 615  Strepera-versicolor-729330.mp3 9.070459e-05   118  37.03146480  37.0315555
## 616  Strepera-versicolor-729330.mp3 8.526232e-03   119  37.05357405  37.0621003
## 617  Strepera-versicolor-729330.mp3 4.535230e-05   120  37.11003766  37.1100830
## 618  Strepera-versicolor-729330.mp3 5.374247e-03   121  37.11019639  37.1155706
## 619  Strepera-versicolor-729330.mp3 3.696212e-03   122  37.15251008  37.1562063
## 620  Strepera-versicolor-729330.mp3 1.029497e-02   123  37.16026532  37.1705603
## 621  Strepera-versicolor-729330.mp3 4.535230e-05   124  37.17060565  37.1706510
## 622  Strepera-versicolor-729330.mp3 9.070459e-05   125  37.17194354  37.1720342
## 623  Strepera-versicolor-729330.mp3 8.050033e-03   126  37.17210227  37.1801523
## 624  Strepera-versicolor-729330.mp3 7.256367e-04   127  37.21942739  37.2201530
## 625  Strepera-versicolor-729330.mp3 2.274418e-02   128  37.23253421  37.2552784
## 626  Strepera-versicolor-729330.mp3 3.920706e-02   129  37.26335109  37.3025582
## 627  Strepera-versicolor-729330.mp3 7.596510e-03   130  37.30459900  37.3121955
## 628  Strepera-versicolor-729330.mp3 1.814092e-04   131  37.31224087  37.3124223
## 629  Strepera-versicolor-729330.mp3 1.201836e-03   132  37.31249030  37.3136921
## 630  Strepera-versicolor-729330.mp3 6.961577e-03   133  37.32491683  37.3318784
## 631  Strepera-versicolor-729330.mp3 1.179160e-03   134  37.33342039  37.3345995
## 632  Strepera-versicolor-729330.mp3 9.523982e-04   135  37.35423709  37.3551895
## 633  Strepera-versicolor-729330.mp3 4.059030e-03   136  37.35657274  37.3606318
## 634  Strepera-versicolor-729330.mp3 1.111131e-02   137  37.36283135  37.3739427
## 635  Strepera-versicolor-729330.mp3 9.115811e-03   138  37.37675451  37.3858703
## 636  Strepera-versicolor-729330.mp3 6.802844e-05   139  37.40478223  37.4048503
## 637  Strepera-versicolor-729330.mp3 2.040853e-04   140  37.40494096  37.4051450
## 638  Strepera-versicolor-729330.mp3 1.360569e-04   141  37.40516772  37.4053038
## 639  Strepera-versicolor-729330.mp3 4.535230e-05   142  37.40543983  37.4054852
## 640  Strepera-versicolor-729330.mp3 9.070459e-05   143  39.31354698  39.3136377
## 641  Strepera-versicolor-729330.mp3 9.070459e-04   144  39.31368304  39.3145901
## 642  Strepera-versicolor-729330.mp3 1.049906e-02   145  39.31493022  39.3254293
## 643  Strepera-versicolor-729330.mp3 1.190498e-02   146  39.39200645  39.4039114
## 644  Strepera-versicolor-729330.mp3 1.587330e-03   147  39.40803849  39.4096258
## 645  Strepera-versicolor-729330.mp3 6.802844e-05   148  39.48214414  39.4822122
## 646  Strepera-versicolor-729330.mp3 1.587330e-03   149  39.48228020  39.4838675
## 647  Strepera-versicolor-729330.mp3 9.229192e-03   150  39.50951425  39.5187434
## 648  Strepera-versicolor-729330.mp3 9.818772e-03   151  39.52026274  39.5300815
## 649  Strepera-versicolor-729330.mp3 4.535230e-05   152  39.53445801  39.5345034
## 650  Strepera-versicolor-729330.mp3 7.029606e-04   153  39.53457139  39.5352744
## 651  Strepera-versicolor-729330.mp3 6.802844e-05   154  39.53912930  39.5391973
## 652  Strepera-versicolor-729330.mp3 4.761991e-04   155  39.53928803  39.5397642
## 653  Strepera-versicolor-729330.mp3 6.802844e-05   156  39.53985494  39.5399230
## 654  Strepera-versicolor-729330.mp3 6.780168e-03   157  39.54627229  39.5530525
## 655  Strepera-versicolor-729330.mp3 1.358301e-02   158  39.56039953  39.5739825
## 656  Strepera-versicolor-729330.mp3 4.535230e-05   159  39.62151174  39.6215571
## 657  Strepera-versicolor-729330.mp3 1.133807e-04   160  39.62169315  39.6218065
## 658  Strepera-versicolor-729330.mp3 1.383245e-03   161  39.62187456  39.6232578
## 659  Strepera-versicolor-729330.mp3 1.748331e-02   162  39.62343922  39.6409225
## 660  Strepera-versicolor-729330.mp3 2.267615e-05   163  39.64105858  39.6410813
## 661  Strepera-versicolor-729330.mp3 3.356070e-03   164  41.36059088  41.3639470
## 662  Strepera-versicolor-729330.mp3 1.133807e-04   165  41.36399230  41.3641057
## 663  Strepera-versicolor-729330.mp3 9.070459e-05   166  41.36426442  41.3643551
## 664  Strepera-versicolor-729330.mp3 4.421849e-03   167  41.40943530  41.4138572
## 665  Strepera-versicolor-729330.mp3 6.303969e-03   168  41.47193077  41.4782347
## 666  Strepera-versicolor-729330.mp3 1.598668e-02   169  41.50682936  41.5228160
## 667  Strepera-versicolor-729330.mp3 9.365249e-03   170  41.53102481  41.5403901
## 668  Strepera-versicolor-729330.mp3 3.968326e-03   171  41.56154690  41.5655152
## 669  Strepera-versicolor-729330.mp3 4.852696e-03   172  41.57036793  41.5752206
## 670  Strepera-versicolor-729330.mp3 1.233582e-02   173  41.59513028  41.6074661
## 671  Strepera-versicolor-729330.mp3 4.535230e-05   174  41.60755681  41.6076022
## 672  Strepera-versicolor-729330.mp3 6.802844e-05   175  41.60778357  41.6078516
## 673  Strepera-versicolor-729330.mp3 6.802844e-05   176  41.60801033  41.6080784
## 674  Strepera-versicolor-729330.mp3 1.360569e-04   177  41.60819174  41.6083278
## 675  Strepera-versicolor-729330.mp3 6.462702e-03   178  41.60839583  41.6148585
## 676  Strepera-versicolor-729330.mp3 3.537479e-02   179  41.62501744  41.6603922
## 677  Strepera-versicolor-729330.mp3 3.628184e-03   180  41.67635624  41.6799844
## 678  Strepera-versicolor-729330.mp3 2.970575e-03   181  41.69066489  41.6936355
## 679  Strepera-versicolor-729330.mp3 2.267615e-05   182  41.69365814  41.6936808
## 680  Strepera-versicolor-729330.mp3 4.625934e-03   183  41.98767708  41.9923030
## 681  Strepera-versicolor-729330.mp3 4.535230e-05   184  42.00293812  42.0029835
## 682  Strepera-versicolor-729330.mp3 2.721138e-04   185  42.00311953  42.0033916
## 683  Strepera-versicolor-729330.mp3 1.104328e-02   186  42.00345968  42.0145030
## 684  Strepera-versicolor-729330.mp3 8.662289e-03   187  42.02903837  42.0377007
## 685  Strepera-versicolor-729330.mp3 5.056781e-03   188  42.08572874  42.0907855
## 686  Strepera-versicolor-729330.mp3 9.070459e-05   189  42.11851845  42.1186092
## 687  Strepera-versicolor-729330.mp3 3.893495e-02   190  42.11863183  42.1575668
## 688  Strepera-versicolor-729330.mp3 2.267615e-05   191  42.15761213  42.1576348
## 689  Strepera-versicolor-729330.mp3 3.650860e-03   192  42.17028810  42.1739390
## 690  Strepera-versicolor-729330.mp3 8.616936e-04   193  42.18217040  42.1830321
## 691  Strepera-versicolor-729330.mp3 4.192820e-02   194  42.18981226  42.2317405
## 692  Strepera-versicolor-729330.mp3 6.485378e-03   195  42.23677456  42.2432599
## 693  Strepera-versicolor-729330.mp3 2.267615e-05   196  42.24328262  42.2433053
## 694  Strepera-versicolor-729330.mp3 1.972825e-03   197  42.24507403  42.2470469
## 695  Strepera-versicolor-729330.mp3 4.535230e-05   198  42.33911202  42.3391574
## 696  Strepera-versicolor-729330.mp3 3.900297e-03   199  42.33924807  42.3431484
## 697  Strepera-versicolor-729330.mp3 9.070459e-05   200  42.34323908  42.3433298
## 698  Strepera-versicolor-729330.mp3 3.900297e-03   201  45.06340176  45.0673021
## 699  Strepera-versicolor-729330.mp3 2.941096e-02   202  45.14199728  45.1714082
## 700  Strepera-versicolor-729330.mp3 8.889050e-03   203  45.18428830  45.1931773
## 701  Strepera-versicolor-729330.mp3 4.603258e-03   204  45.20705515  45.2116584
## 702  Strepera-versicolor-729330.mp3 5.850446e-03   205  45.21961774  45.2254682
## 703  Strepera-versicolor-729330.mp3 2.712067e-02   206  45.23240709  45.2595278
## 704  Strepera-versicolor-729330.mp3 4.535230e-05   207  45.25957311  45.2596185
## 705  Strepera-versicolor-729330.mp3 1.156484e-02   208  45.34853164  45.3600965
## 706  Strepera-versicolor-729330.mp3 2.759687e-02   209  46.83055396  46.8581508
## 707  Strepera-versicolor-729330.mp3 1.165554e-02   210  46.88937589  46.9010314
## 708  Strepera-versicolor-729330.mp3 1.378710e-02   211  46.94187117  46.9556583
## 709  Strepera-versicolor-729330.mp3 1.828605e-01   212  46.97184904  47.1547095
## 710  Strepera-versicolor-729330.mp3 1.360569e-04   213  47.16504982  47.1651859
## 711  Strepera-versicolor-729330.mp3 1.390048e-02   214  47.16532194  47.1792224
## 712  Strepera-versicolor-729330.mp3 2.267615e-05   215  47.17935847  47.1793811
## 713  Strepera-versicolor-729330.mp3 1.360569e-03   216  47.18155806  47.1829186
## 714  Strepera-versicolor-729330.mp3 4.535230e-05   217  47.18323609  47.1832814
## 715  Strepera-versicolor-729330.mp3 4.535230e-05   218  47.18366694  47.1837123
## 716  Strepera-versicolor-729330.mp3 4.535230e-05   219  47.18378032  47.1838257
## 717  Strepera-versicolor-729330.mp3 1.882120e-03   220  47.18402976  47.1859119
## 718  Strepera-versicolor-729330.mp3 6.802844e-05   221  47.18677357  47.1868416
## 719  Strepera-versicolor-729330.mp3 2.040853e-04   222  47.18686428  47.1870684
## 720  Strepera-versicolor-729330.mp3 1.814092e-04   223  47.18713639  47.1873178
## 721  Strepera-versicolor-729330.mp3 3.199604e-02   224  47.19368980  47.2256858
## 722  Strepera-versicolor-729330.mp3 1.424062e-02   225  47.38312634  47.3973670
## 723  Strepera-versicolor-729330.mp3 1.133807e-04   226  47.40725376  47.4073671
## 724  Strepera-versicolor-729330.mp3 7.029606e-04   227  47.40738982  47.4080928
## 725  Strepera-versicolor-729330.mp3 9.070459e-05   228  47.40818348  47.4082742
## 726  Strepera-versicolor-729330.mp3 7.664538e-03   229  47.44852435  47.4561889
## 727  Strepera-versicolor-729330.mp3 2.358319e-03   230  47.48845704  47.4908154
## 728  Strepera-versicolor-729330.mp3 2.607757e-03   231  47.49242537  47.4950331
## 729  Strepera-versicolor-729330.mp3 1.360569e-04   232  47.49510116  47.4952372
## 730  Strepera-versicolor-729330.mp3 9.070459e-05   233  47.49535059  47.4954413
## 731  Strepera-versicolor-729330.mp3 7.913976e-03   234  47.49555468  47.5034687
## 732  Strepera-versicolor-729330.mp3 9.070459e-05   235  48.98088772  48.9809784
## 733  Strepera-versicolor-729330.mp3 9.682715e-03   236  48.98104645  48.9907292
## 734  Strepera-versicolor-729330.mp3 1.494358e-02   237  48.99775877  49.0127024
## 735  Strepera-versicolor-729330.mp3 6.167912e-03   238  49.01546885  49.0216368
## 736  Strepera-versicolor-729330.mp3 6.326645e-03   239  49.05971001  49.0660367
## 737  Strepera-versicolor-729330.mp3 1.916135e-02   240  49.09386029  49.1130216
## 738  Strepera-versicolor-729330.mp3 6.802844e-05   241  49.17104990  49.1711179
## 739  Strepera-versicolor-729330.mp3 3.841339e-02   242  49.17118595  49.2095993
## 740  Strepera-versicolor-729330.mp3 2.403672e-03   243  49.29737872  49.2997824
## 741  Strepera-versicolor-729330.mp3 1.360569e-03   244  51.24476095  51.2461215
## 742  Strepera-versicolor-729330.mp3 4.535230e-05   245  51.24623490  51.2462803
## 743  Strepera-versicolor-729330.mp3 7.777919e-03   246  51.31616814  51.3239461
## 744  Strepera-versicolor-729330.mp3 3.521606e-02   247  51.33739301  51.3726091
## 745  Strepera-versicolor-729330.mp3 2.267615e-05   248  51.39050055  51.3905232
## 746  Strepera-versicolor-729330.mp3 1.852641e-02   249  51.39063661  51.4091630
## 747  Strepera-versicolor-729330.mp3 6.802844e-04   250  51.41013810  51.4108184
## 748  Strepera-versicolor-729330.mp3 9.410601e-03   251  51.41818813  51.4275987
## 749  Strepera-versicolor-729330.mp3 9.070459e-05   252  51.42766676  51.4277575
## 750  Strepera-versicolor-729330.mp3 4.748385e-02   253  51.43651046  51.4839943
## 751  Strepera-versicolor-729330.mp3 1.133807e-04   254  51.48406234  51.4841757
## 752  Strepera-versicolor-729330.mp3 7.074958e-03   255  51.48540023  51.4924752
## 753  Strepera-versicolor-729330.mp3 6.802844e-05   256  51.49252054  51.4925886
## 754  Strepera-versicolor-729330.mp3 1.934275e-02   257  51.56533365  51.5846764
## 755  Strepera-versicolor-729330.mp3 1.156484e-02   258  53.68192530  53.6934901
## 756  Strepera-versicolor-729330.mp3 1.913867e-02   259  53.69802537  53.7171640
## 757  Strepera-versicolor-729330.mp3 1.882120e-03   260  53.77623540  53.7781175
## 758  Strepera-versicolor-729330.mp3 1.360569e-04   261  53.77820823  53.7783443
## 759  Strepera-versicolor-729330.mp3 1.133807e-04   262  53.77843499  53.7785484
## 760  Strepera-versicolor-729330.mp3 9.070459e-05   263  53.77866175  53.7787525
## 761  Strepera-versicolor-729330.mp3 1.133807e-04   264  53.77886584  53.7789792
## 762  Strepera-versicolor-729330.mp3 1.360569e-04   265  53.77906992  53.7792060
## 763  Strepera-versicolor-729330.mp3 1.351498e-02   266  53.77927401  53.7927890
## 764  Strepera-versicolor-729330.mp3 8.029624e-02   267  54.01667060  54.0969668
## 765  Strepera-versicolor-729330.mp3 2.938148e-01   268  54.11889467  54.4127095
## 766  Strepera-versicolor-729330.mp3 8.594260e-03   269  56.46975361  56.4783479
## 767  Strepera-versicolor-729330.mp3 9.750744e-03   270  56.49152271  56.5012735
## 768  Strepera-versicolor-729330.mp3 9.365249e-03   271  56.54653504  56.5559003
## 769  Strepera-versicolor-729330.mp3 3.968326e-03   272  56.55732889  56.5612972
## 770  Strepera-versicolor-729330.mp3 3.480789e-02   273  58.18441053  58.2192184
## 771  Strepera-versicolor-729330.mp3 1.628147e-02   274  58.24218936  58.2584708
## 772  Strepera-versicolor-729330.mp3 2.956970e-02   275  58.28636249  58.3159322
## 773  Strepera-versicolor-729330.mp3 1.684838e-01   276  58.32014995  58.4886337
## 774  Strepera-versicolor-729330.mp3 4.870837e-02   277  58.51892907  58.5676374
## 775  Strepera-versicolor-729330.mp3 4.376497e-03   278  58.56768279  58.5720593
## 776  Strepera-versicolor-729330.mp3 9.070459e-05   279  58.57210463  58.5721953
## 777  Strepera-versicolor-729330.mp3 9.070459e-05   280  59.11871318  59.1188039
## 778  Strepera-versicolor-729330.mp3 1.065779e-02   281  59.11884924  59.1295070
## 779  Strepera-versicolor-729331.mp3 1.007050e-01     1   2.31310833   2.4138133
## 780  Strepera-versicolor-729331.mp3 4.648621e-02     2   2.54714937   2.5936356
## 781  Strepera-versicolor-729331.mp3 2.267620e-04     3   2.59490545   2.5951322
## 782  Strepera-versicolor-729331.mp3 1.190500e-02     4   2.59608461   2.6079896
## 783  Strepera-versicolor-729331.mp3 7.154341e-02     5   2.71141576   2.7829592
## 784  Strepera-versicolor-729331.mp3 1.133810e-04     6   3.04015261   3.0402660
## 785  Strepera-versicolor-729331.mp3 5.648641e-02     7   3.04051543   3.0970018
## 786  Strepera-versicolor-729331.mp3 9.229213e-03     8   3.12793217   3.1371614
## 787  Strepera-versicolor-729331.mp3 1.712053e-02     9   3.13967844   3.1567990
## 788  Strepera-versicolor-729331.mp3 7.233707e-03    10   7.86074964   7.8679833
## 789  Strepera-versicolor-729331.mp3 7.576118e-02    11   7.86909448   7.9448557
## 790  Strepera-versicolor-729331.mp3 3.190541e-02    12   8.11839661   8.1503020
## 791  Strepera-versicolor-729331.mp3 7.068171e-02    13   8.28622315   8.3569049
## 792  Strepera-versicolor-729331.mp3 1.642664e-01    14   8.57119494   8.7354613
## 793  Strepera-versicolor-729331.mp3 1.360572e-04    15   8.73552935   8.7356654
## 794  Strepera-versicolor-729331.mp3 7.675893e-02    16  13.63719379  13.7139527
## 795  Strepera-versicolor-729331.mp3 4.535240e-05    17  13.71397540  13.7140208
## 796  Strepera-versicolor-729331.mp3 1.269867e-03    18  13.71515456  13.7164244
## 797  Strepera-versicolor-729331.mp3 1.882124e-03    19  13.71717274  13.7190549
## 798  Strepera-versicolor-729331.mp3 2.938835e-02    20  13.86976088  13.8991492
## 799  Strepera-versicolor-729331.mp3 6.526210e-02    21  14.04212267  14.1073848
## 800  Strepera-versicolor-729331.mp3 9.217875e-02    22  17.35951448  17.4516932
## 801  Strepera-versicolor-729331.mp3 1.086190e-02    23  17.45296310  17.4638250
## 802  Strepera-versicolor-729331.mp3 6.294913e-02    24  17.62226360  17.6852127
## 803  Strepera-versicolor-729331.mp3 6.859550e-02    25  17.79215368  17.8607492
## 804  Strepera-versicolor-729331.mp3 1.360572e-04    26  17.86118003  17.8613161
## 805  Strepera-versicolor-729331.mp3 2.267620e-05    27  17.86136144  17.8613841
## 806  Strepera-versicolor-729331.mp3 9.297241e-04    28  17.86696246  17.8678922
## 807  Strepera-versicolor-729331.mp3 1.587334e-04    29  18.07533405  18.0754928
## 808  Strepera-versicolor-729331.mp3 1.229957e-01    30  18.07553814  18.1985338
## 809  Strepera-versicolor-729331.mp3 1.133810e-04    31  18.19862454  18.1987379
## 810  Strepera-versicolor-729331.mp3 9.070479e-05    32  18.19889666  18.1989874
## 811  Strepera-versicolor-729331.mp3 1.133810e-04    33  18.20043864  18.2005520
## 812  Strepera-versicolor-729331.mp3 9.433299e-03    34  18.20064272  18.2100760
## 813  Strepera-versicolor-729331.mp3 9.984330e-02    35  22.89493332  22.9947766
## 814  Strepera-versicolor-729331.mp3 3.254035e-02    36  23.14142360  23.1739639
## 815  Strepera-versicolor-729331.mp3 4.981961e-02    37  23.30977170  23.3595913
## 816  Strepera-versicolor-729331.mp3 6.802860e-05    38  23.61717025  23.6172383
## 817  Strepera-versicolor-729331.mp3 3.766517e-02    39  23.61728363  23.6549488
## 818  Strepera-versicolor-729331.mp3 2.267620e-05    40  23.66429139  23.6643141
## 819  Strepera-versicolor-729331.mp3 1.587334e-04    41  23.66445013  23.6646089
## 820  Strepera-versicolor-729331.mp3 3.628192e-04    42  23.66474492  23.6651077
## 821  Strepera-versicolor-729331.mp3 1.360572e-03    43  23.66522112  23.6665817
## 822  Strepera-versicolor-729331.mp3 3.029540e-02    44  23.68274982  23.7130452
## 823  Strepera-versicolor-729331.mp3 4.535240e-05    45  23.71309057  23.7131359
## 824  Strepera-versicolor-729331.mp3 9.242819e-02    46  27.65255855  27.7449867
## 825  Strepera-versicolor-729331.mp3 2.267620e-05    47  27.74503208  27.7450548
## 826  Strepera-versicolor-729331.mp3 1.625883e-02    48  27.74711830  27.7633771
## 827  Strepera-versicolor-729331.mp3 9.478651e-03    49  27.76736814  27.7768468
## 828  Strepera-versicolor-729331.mp3 5.895812e-04    50  27.78650685  27.7870964
## 829  Strepera-versicolor-729331.mp3 2.267620e-05    51  27.78711911  27.7871418
## 830  Strepera-versicolor-729331.mp3 3.374218e-02    52  27.92242799  27.9561702
## 831  Strepera-versicolor-729331.mp3 6.435505e-02    53  28.09980121  28.1641563
## 832  Strepera-versicolor-729331.mp3 1.505019e-01    54  28.39543082  28.5459327
## 833  Strepera-versicolor-729331.mp3 1.782349e-02    55  28.54937953  28.5672030
## 834  Strepera-versicolor-743906.mp3 1.958349e-03     1   6.26238376   6.2643421
## 835  Strepera-versicolor-743906.mp3 2.580437e-01     2   6.44578108   6.7038248
## 836  Strepera-versicolor-743906.mp3 3.583362e-03     3   6.70390815   6.7074915
## 837  Strepera-versicolor-743906.mp3 6.250050e-05     4   6.70759568   6.7076582
## 838  Strepera-versicolor-743906.mp3 1.854182e-03     5   6.70949153   6.7113457
## 839  Strepera-versicolor-743906.mp3 2.291685e-03     6   6.71738743   6.7196791
## 840  Strepera-versicolor-743906.mp3 1.250010e-04     7   6.71978328   6.7199083
## 841  Strepera-versicolor-743906.mp3 8.333400e-05     8   6.72003328   6.7201166
## 842  Strepera-versicolor-743906.mp3 1.250010e-04     9   6.72026245   6.7203875
## 843  Strepera-versicolor-743906.mp3 1.875015e-04    10   6.72044995   6.7206375
## 844  Strepera-versicolor-743906.mp3 6.750054e-03    11   6.72069996   6.7274500
## 845  Strepera-versicolor-743906.mp3 1.802098e-02    12   6.73484590   6.7528669
## 846  Strepera-versicolor-743906.mp3 6.250050e-05    13   6.75297105   6.7530335
## 847  Strepera-versicolor-743906.mp3 3.500028e-03    14  26.04791810  26.0514181
## 848  Strepera-versicolor-743906.mp3 6.166716e-03    15  26.80427836  26.8104451
## 849  Strepera-versicolor-743906.mp3 2.083350e-05    16  29.60163422  29.6016551
## 850  Strepera-versicolor-743906.mp3 8.166732e-03    17  29.60169672  29.6098635
## 851  Strepera-versicolor-743906.mp3 9.729245e-03    18  29.61194680  29.6216760
## 852  Strepera-versicolor-743906.mp3 2.529812e-01    19  29.79817747  30.0511587
## 853  Strepera-versicolor-743906.mp3 2.229185e-02    20  30.05899207  30.0812839
## 854  Strepera-versicolor-743906.mp3 2.250018e-03    21  30.08238809  30.0846381
## 855  Strepera-versicolor-743906.mp3 4.166700e-05    22  30.08813814  30.0881798
## 856  Strepera-versicolor-743906.mp3 5.583378e-03    23  30.08828397  30.0938673
## 857  Strepera-versicolor-743906.mp3 6.270884e-03    24  30.09940906  30.1056799
## 858  Strepera-versicolor-743906.mp3 5.145875e-03    25  30.11361751  30.1187634
## 859  Strepera-versicolor-743906.mp3 4.791705e-03    26  30.12457593  30.1293676
## 860  Strepera-versicolor-743906.mp3 1.041675e-04    27  30.15515951  30.1552637
## 861  Strepera-versicolor-743906.mp3 5.125041e-03    28  30.15534701  30.1604721
## 862  Strepera-versicolor-743906.mp3 4.166700e-05    29  30.16847212  30.1685138
## 863  Strepera-versicolor-743906.mp3 7.889647e-02    30  36.43504341  36.5139399
## 864  Strepera-versicolor-743906.mp3 1.054175e-02    31  36.51402322  36.5245650
## 865  Strepera-versicolor-743906.mp3 1.395845e-03    32  36.52518997  36.5265858
## 866  Strepera-versicolor-743906.mp3 1.137509e-02    33  36.52891917  36.5402943
## 867  Strepera-versicolor-743906.mp3 4.166700e-05    34  36.54173177  36.5417734
## 868  Strepera-versicolor-743906.mp3 6.291717e-03    35  36.54183594  36.5481277
## 869  Strepera-versicolor-743906.mp3 3.583362e-03    36  36.56598197  36.5695653
## 870  Strepera-versicolor-743906.mp3 2.416686e-03    37  36.58869049  36.5911072
## 871  Strepera-versicolor-743906.mp3 2.075017e-02    38  38.55522716  38.5759773
## 872  Strepera-versicolor-743906.mp3 3.750030e-04    39  40.38513772  40.3855127
## 873  Strepera-versicolor-743906.mp3 8.750070e-03    40  40.38699191  40.3957420
## 874  Strepera-versicolor-743906.mp3 2.083350e-05    41  40.39663782  40.3966587
## 875  Strepera-versicolor-743906.mp3 7.187558e-03    42  40.39672115  40.4039087
## 876  Strepera-versicolor-743906.mp3 3.031899e-01    43  40.57543092  40.8786209
## 877  Strepera-versicolor-743906.mp3 1.179176e-02    44  40.88226673  40.8940585
## 878  Strepera-versicolor-743906.mp3 8.416734e-03    45  40.90268356  40.9111003
## 879  Strepera-versicolor-743906.mp3 9.979247e-03    46  40.91989203  40.9298713
## 880  Strepera-versicolor-743906.mp3 1.097926e-02    47  40.93587133  40.9468506
## 881  Strepera-versicolor-743906.mp3 5.395877e-03    48  46.98992008  46.9953160
## 882  Strepera-versicolor-743906.mp3 9.977164e-02    49  47.92196925  48.0217409
## 883  Strepera-versicolor-743906.mp3 4.687538e-03    50  48.02884511  48.0335327
## 884  Strepera-versicolor-743906.mp3 1.358344e-02    51  48.04915778  48.0627412
## 885  Strepera-versicolor-743906.mp3 1.114592e-02    52  48.06963711  48.0807830
## 886  Strepera-versicolor-743906.mp3 3.541695e-04    53  48.08086637  48.0812205
## 887  Strepera-versicolor-743906.mp3 9.583411e-04    54  48.08126220  48.0822205
## 888  Strepera-versicolor-743906.mp3 1.458345e-04    55  48.08378306  48.0839289
## 889  Strepera-versicolor-743906.mp3 1.041675e-04    56  48.08401222  48.0841164
## 890  Strepera-versicolor-743906.mp3 2.291685e-04    57  48.08417889  48.0844081
## 891  Strepera-versicolor-743906.mp3 3.854198e-03    58  48.08444973  48.0883039
## 892  Strepera-versicolor-743906.mp3 6.250050e-05    59  50.77428389  50.7743464
## 893  Strepera-versicolor-743906.mp3 3.200026e-02    60  50.77451306  50.8065133
## 894  Strepera-versicolor-743906.mp3 1.591679e-02    61  52.92842624  52.9443430
## 895  Strepera-versicolor-743906.mp3 3.000024e-03    62  52.94603055  52.9490306
## 896  Strepera-versicolor-743906.mp3 2.393978e-01    63  53.10542766  53.3448254
## 897  Strepera-versicolor-743906.mp3 1.683347e-02    64  53.34755461  53.3643881
## 898  Strepera-versicolor-743906.mp3 5.062541e-03    65  53.36747144  53.3725340
## 899  Strepera-versicolor-743906.mp3 3.281276e-02    66  53.37359649  53.4064093
## 900  Strepera-versicolor-743906.mp3 5.416710e-03    67  53.41976353  53.4251802
## 901  Strepera-versicolor-743906.mp3 2.577104e-02    68  53.42818026  53.4539513
## 902  Strepera-versicolor-743906.mp3 7.145891e-03    69  53.46153470  53.4686806
## 903  Strepera-versicolor-743906.mp3 4.979207e-03    70  61.54489146  61.5498707
## 904  Strepera-versicolor-743906.mp3 4.583370e-03    71  61.81124777  61.8158311
## 905  Strepera-versicolor-743906.mp3 7.833396e-03    72  61.85885232  61.8666857
## 906  Strepera-versicolor-743906.mp3 9.791746e-02    73  62.46816973  62.5660872
## 907  Strepera-versicolor-743906.mp3 4.166700e-05    74  62.57550393  62.5755456
## 908  Strepera-versicolor-743906.mp3 5.416710e-03    75  62.57558726  62.5810040
## 909  Strepera-versicolor-743906.mp3 1.041675e-04    76  62.58108730  62.5811915
## 910  Strepera-versicolor-743906.mp3 5.770880e-03    77  62.58621235  62.5919832
## 911  Strepera-versicolor-743906.mp3 1.350011e-02    78  62.59442074  62.6079209
## 912  Strepera-versicolor-743906.mp3 2.458353e-03    79  62.61729593  62.6197543
## 913  Strepera-versicolor-743906.mp3 4.166700e-05    80  62.61983762  62.6198793
## 914  Strepera-versicolor-743906.mp3 4.275034e-02    81  65.15752472  65.2002751
## 915  Strepera-versicolor-743906.mp3 3.125025e-04    82  66.86222595  66.8625384
## 916  Strepera-versicolor-743906.mp3 2.135434e-02    83  66.86295512  66.8843095
## 917  Strepera-versicolor-743906.mp3 3.187526e-03    84  66.88612197  66.8893095
## 918  Strepera-versicolor-743906.mp3 2.345436e-01    85  67.04741494  67.2819585
## 919  Strepera-versicolor-743906.mp3 4.166700e-05    86  67.28820854  67.2882502
## 920  Strepera-versicolor-743906.mp3 1.385428e-02    87  67.28829188  67.3021462
## 921  Strepera-versicolor-743906.mp3 2.479187e-02    88  67.30697953  67.3317714
## 922  Strepera-versicolor-743906.mp3 8.750070e-04    89  67.33235473  67.3332297
## 923  Strepera-versicolor-743906.mp3 1.035425e-02    90  67.33414641  67.3445007
## 924  Strepera-versicolor-743906.mp3 2.979191e-03    91  67.34935487  67.3523341
## 925  Strepera-versicolor-743906.mp3 2.083350e-05    92  67.38448015  67.3845010
## 926  Strepera-versicolor-743906.mp3 2.000016e-03    93  67.38462599  67.3866260
## 927  Strepera-versicolor-743906.mp3 8.333400e-05    94  67.42754300  67.4276263
## 928  Strepera-versicolor-743906.mp3 2.541687e-03    95  67.42768883  67.4302305
## 929  Strepera-versicolor-743906.mp3 8.333400e-05    96  67.43029302  67.4303764
## 930  Strepera-versicolor-743906.mp3 1.250010e-04    97  67.43368888  67.4338139
## 931  Strepera-versicolor-743906.mp3 1.812515e-03    98  67.43387638  67.4356889
## 932  Strepera-versicolor-743906.mp3 1.047717e-01    99  74.57568390  74.6804556
## 933  Strepera-versicolor-743906.mp3 1.050008e-02   100  74.68328893  74.6937890
## 934  Strepera-versicolor-743906.mp3 3.208359e-03   101  74.69760155  74.7008099
## 935  Strepera-versicolor-743906.mp3 4.166700e-05   102  74.70143491  74.7014766
## 936  Strepera-versicolor-743906.mp3 1.312511e-03   103  74.70151824  74.7028308
## 937  Strepera-versicolor-743906.mp3 1.708347e-02   104  74.70570578  74.7227892
## 938  Strepera-versicolor-743906.mp3 5.020874e-03   105  74.72785179  74.7328727
## 939  Strepera-versicolor-743906.mp3 3.797947e-02   106  77.17122563  77.2092051
## 940  Strepera-versicolor-743906.mp3 6.395885e-03   107  77.36533136  77.3717272
## 941  Strepera-versicolor-743906.mp3 2.083350e-05   108  78.88869780  78.8887186
## 942  Strepera-versicolor-743906.mp3 4.102116e-02   109  78.88873946  78.9297606
## 943  Strepera-versicolor-743906.mp3 1.520846e-03   110  78.93061480  78.9321356
## 944  Strepera-versicolor-743906.mp3 6.250050e-05   111  78.94092738  78.9409899
## 945  Strepera-versicolor-743906.mp3 1.875015e-04   112  78.94101072  78.9411982
## 946  Strepera-versicolor-743906.mp3 1.687514e-03   113  78.94128155  78.9429691
## 947  Strepera-versicolor-743906.mp3 2.290852e-01   114  79.07297011  79.3020553
## 948  Strepera-versicolor-743906.mp3 1.012508e-02   115  79.30313863  79.3132637
## 949  Strepera-versicolor-743906.mp3 4.791705e-03   116  79.31934710  79.3241388
## 950  Strepera-versicolor-743906.mp3 3.481278e-02   117  79.32811800  79.3629308
## 951  Strepera-versicolor-743906.mp3 2.443770e-02   118  79.36778499  79.3922227
## 952  Strepera-versicolor-743906.mp3 6.541719e-03   119  79.40820198  79.4147437
## 953  Strepera-versicolor-743906.mp3 1.041675e-04   120  79.41480620  79.4149104
## 954  Strepera-versicolor-743906.mp3 5.520878e-03   121  79.46241075  79.4679316
## 955  Strepera-versicolor-743906.mp3 5.750046e-03   122  79.47530669  79.4810567
## 956  Strepera-versicolor-743906.mp3 4.187534e-03   123  79.51741119  79.5215987
## 957  Strepera-versicolor-743906.mp3 2.541687e-03   124  81.60153214  81.6040738
## 958  Strepera-versicolor-743906.mp3 2.083350e-05   125  81.60488634  81.6049072
## 959  Strepera-versicolor-743906.mp3 4.166700e-05   126  81.60496967  81.6050113
## 960  Strepera-versicolor-743906.mp3 1.250010e-04   127  81.60503217  81.6051572
## 961  Strepera-versicolor-743906.mp3 2.270852e-03   128  82.13195308  82.1342239
## 962  Strepera-versicolor-743906.mp3 4.020866e-03   129  82.56443573  82.5684566
## 963  Strepera-versicolor-743906.mp3 3.979199e-03   130  82.71399944  82.7179786
## 964  Strepera-versicolor-743906.mp3 5.166708e-03   131  83.70625743  83.7114241
## 965  Strepera-versicolor-743906.mp3 2.083350e-05   132  83.71144497  83.7114658
## 966  Strepera-versicolor-743906.mp3 4.504203e-02   133  83.98771803  84.0327601
## 967  Strepera-versicolor-743906.mp3 2.452311e-01   134  84.17661538  84.4218465
## 968  Strepera-versicolor-743906.mp3 1.144384e-01   135  84.42426321  84.5387016
## 969  Strepera-versicolor-743906.mp3 8.333400e-05   136  84.54024331  84.5403266
## 970  Strepera-versicolor-743906.mp3 1.787514e-02   137  84.54034748  84.5582226
## 971  Strepera-versicolor-743906.mp3 4.166700e-05   138  84.57734778  84.5773894
## 972  Strepera-versicolor-743906.mp3 1.020842e-03   139  84.57751444  84.5785353
## 973  Strepera-versicolor-743906.mp3 1.382511e-01   140  84.82774563  84.9659967
## 974  Strepera-versicolor-743906.mp3 4.166700e-05   141  84.97447597  84.9745176
## 975  Strepera-versicolor-743906.mp3 3.958365e-04   142  84.97453847  84.9749343
## 976  Strepera-versicolor-743906.mp3 4.583370e-04   143  84.97520515  84.9756635
## 977  Strepera-versicolor-743906.mp3 3.812531e-03   144  84.97591349  84.9797260
## 978  Strepera-versicolor-743906.mp3 9.510493e-02   145  85.01174711  85.1068520
## 979  Strepera-versicolor-743906.mp3 4.166700e-05   146  85.10808122  85.1081229
## 980  Strepera-versicolor-743906.mp3 1.875015e-04   147  85.10916456  85.1093521
## 981  Strepera-versicolor-743906.mp3 4.583370e-04   148  85.10937289  85.1098312
## 982  Strepera-versicolor-743906.mp3 2.083350e-05   149  85.11151874  85.1115396
## 983  Strepera-versicolor-743906.mp3 2.181268e-02   150  85.11156041  85.1333731
## 984  Strepera-versicolor-743906.mp3 1.081259e-02   151  85.14139398  85.1522066
## 985  Strepera-versicolor-743906.mp3 2.083350e-05   152  85.15566493  85.1556858
## 986  Strepera-versicolor-743906.mp3 6.104216e-03   153  85.15572743  85.1618316
## 987  Strepera-versicolor-743906.mp3 2.833356e-03   154  85.39235434  85.3951877
## 988  Strepera-versicolor-743906.mp3 1.484804e-01   155  85.39758355  85.5460639
## 989  Strepera-versicolor-743906.mp3 3.895865e-03   156  85.54935560  85.5532515
## 990  Strepera-versicolor-743906.mp3 7.916730e-04   157  85.55350147  85.5542931
## 991  Strepera-versicolor-743906.mp3 2.166684e-03   158  85.57454331  85.5767100
## 992  Strepera-versicolor-743906.mp3 2.083350e-05   159  85.58429338  85.5843142
## 993  Strepera-versicolor-743906.mp3 1.120217e-01   160  85.58433505  85.6963568
## 994  Strepera-versicolor-743906.mp3 3.743780e-02   161  85.69906514  85.7365029
## 995  Strepera-versicolor-743906.mp3 4.166700e-05   162  85.73652378  85.7365654
## 996  Strepera-versicolor-743906.mp3 2.083350e-05   163  85.73681545  85.7368363
## 997  Strepera-versicolor-743906.mp3 1.532304e-01   164  85.98954665  86.1427770
## 998  Strepera-versicolor-743906.mp3 1.541679e-03   165  86.14344372  86.1449854
## 999  Strepera-versicolor-743906.mp3 1.458345e-03   166  86.14677708  86.1482354
## 1000 Strepera-versicolor-743906.mp3 1.562513e-03   167  86.14858960  86.1501521
## 1001 Strepera-versicolor-743906.mp3 1.375011e-03   168  86.15021461  86.1515896
## 1002 Strepera-versicolor-743906.mp3 1.483137e-01   169  86.18315237  86.3314661
## 1003 Strepera-versicolor-743906.mp3 2.083350e-05   170  86.33148690  86.3315077
## 1004 Strepera-versicolor-743906.mp3 3.270860e-03   171  86.34452867  86.3477995
## 1005 Strepera-versicolor-743906.mp3 1.256885e-01   172  86.61467668  86.7403652
## 1006 Strepera-versicolor-743906.mp3 1.525012e-02   173  86.74626108  86.7615112
## 1007 Strepera-versicolor-743906.mp3 6.458385e-04   174  86.76307371  86.7637195
## 1008 Strepera-versicolor-743906.mp3 3.541695e-04   175  86.76413622  86.7644904
## 1009 Strepera-versicolor-743906.mp3 7.062557e-03   176  86.76490706  86.7719696
## 1010 Strepera-versicolor-743906.mp3 1.107509e-01   177  86.80240736  86.9131583
## 1011 Strepera-versicolor-743906.mp3 1.433345e-02   178  86.91799162  86.9323251
## 1012 Strepera-versicolor-743906.mp3 4.166700e-05   179  86.93401259  86.9340543
## 1013 Strepera-versicolor-743906.mp3 1.418761e-02   180  86.93570010  86.9498877
## 1014 Strepera-versicolor-743906.mp3 1.041675e-03   181  86.95013772  86.9511794
## 1015 Strepera-versicolor-743906.mp3 2.083350e-05   182  86.95326274  86.9532836
## 1016 Strepera-versicolor-743906.mp3 1.375011e-03   183  86.95332524  86.9547003
## 1017 Strepera-versicolor-743906.mp3 1.213343e-01   184  87.24255674  87.3638910
## 1018 Strepera-versicolor-743906.mp3 6.250050e-05   185  87.36412022  87.3641827
## 1019 Strepera-versicolor-743906.mp3 4.166700e-05   186  87.36424522  87.3642869
## 1020 Strepera-versicolor-743906.mp3 9.645911e-03   187  87.37130778  87.3809537
## 1021 Strepera-versicolor-743906.mp3 8.666736e-03   188  87.38118285  87.3898496
## 1022 Strepera-versicolor-743906.mp3 1.105426e-01   189  87.42989158  87.5404341
## 1023 Strepera-versicolor-743906.mp3 9.770912e-03   190  87.54668419  87.5564551
## 1024 Strepera-versicolor-743906.mp3 7.500060e-04   191  87.55728844  87.5580384
## 1025 Strepera-versicolor-743906.mp3 1.391678e-02   192  87.55837178  87.5722886
## 1026 Strepera-versicolor-743906.mp3 7.916730e-04   193  87.58966370  87.5904554
## 1027 Strepera-versicolor-743906.mp3 7.833396e-03   194  87.93004144  87.9378748
## 1028 Strepera-versicolor-743906.mp3 1.089800e-01   195  87.94010402  88.0490841
## 1029 Strepera-versicolor-743906.mp3 1.312511e-03   196  88.07043841  88.0717509
## 1030 Strepera-versicolor-743906.mp3 8.366734e-02   197  88.12333466  88.2070020
## 1031 Strepera-versicolor-743906.mp3 1.000008e-03   198  88.20754368  88.2085437
## 1032 Strepera-versicolor-743906.mp3 1.508345e-02   199  88.21275205  88.2278355
## 1033 Strepera-versicolor-743906.mp3 6.666720e-04   200  88.23125220  88.2319189
## 1034 Strepera-versicolor-743906.mp3 1.497929e-02   201  88.23273138  88.2477107
## 1035 Strepera-versicolor-743906.mp3 4.166700e-05   202  88.24773150  88.2477732
## 1036 Strepera-versicolor-743906.mp3 3.541695e-04   203  88.24825234  88.2486065
## 1037 Strepera-versicolor-743906.mp3 3.529195e-02   204 101.46365043 101.4989424
## 1038 Strepera-versicolor-743906.mp3 1.250010e-04   205 101.50444242 101.5045674
## 1039 Strepera-versicolor-743906.mp3 4.166700e-05   206 101.50462993 101.5046716
## 1040 Strepera-versicolor-743906.mp3 2.642105e-01   207 101.64875609 101.9129665
## 1041 Strepera-versicolor-743906.mp3 6.250050e-05   208 101.91302905 101.9130915
## 1042 Strepera-versicolor-743906.mp3 3.308360e-02   209 101.91782075 101.9509044
## 1043 Strepera-versicolor-743906.mp3 7.479227e-03   210 101.95505022 101.9625294
## 1044 Strepera-versicolor-743906.mp3 6.250050e-05   211 101.96259195 101.9626544
## 1045 Strepera-versicolor-743906.mp3 1.045842e-02   212 102.00434228 102.0148007
## 1046 Strepera-versicolor-743906.mp3 2.083350e-05   213 107.23878027 107.2388011
## 1047 Strepera-versicolor-743906.mp3 7.708395e-04   214 107.23921777 107.2399886
## 1048 Strepera-versicolor-743906.mp3 6.250050e-05   215 107.24003028 107.2400928
## 1049 Strepera-versicolor-743906.mp3 1.002300e-01   216 108.18247537 108.2827053
## 1050 Strepera-versicolor-743906.mp3 1.333344e-03   217 108.28524703 108.2865804
## 1051 Strepera-versicolor-743906.mp3 4.166700e-05   218 108.28666371 108.2867054
## 1052 Strepera-versicolor-743906.mp3 1.041675e-04   219 108.28716371 108.2872679
## 1053 Strepera-versicolor-743906.mp3 4.166700e-05   220 108.28812205 108.2881637
## 1054 Strepera-versicolor-743906.mp3 2.604188e-03   221 108.28980957 108.2924138
## 1055 Strepera-versicolor-743906.mp3 1.670847e-02   222 108.30880972 108.3255182
## 1056 Strepera-versicolor-743906.mp3 2.956274e-02   223 110.78149630 110.8110590
## 1057 Strepera-versicolor-743906.mp3 2.933357e-02   224 112.77105399 112.8003876
## 1058 Strepera-versicolor-743906.mp3 2.442728e-01   225 112.96240970 113.2066825
## 1059 Strepera-versicolor-743906.mp3 2.083350e-05   226 113.21445339 113.2144742
## 1060 Strepera-versicolor-743906.mp3 5.333376e-03   227 113.21455756 113.2198909
## 1061 Strepera-versicolor-743906.mp3 5.604212e-03   228 113.22318263 113.2287868
## 1062 Strepera-versicolor-743906.mp3 1.250010e-04   229 113.22887018 113.2289952
## 1063 Strepera-versicolor-743906.mp3 2.083350e-05   230 113.22916184 113.2291827
## 1064 Strepera-versicolor-743906.mp3 2.243768e-02   231 113.23384938 113.2562871
## 1065 Strepera-versicolor-743906.mp3 8.145899e-03   232 113.26051626 113.2686622
## 1066 Strepera-versicolor-743906.mp3 1.270844e-02   233 113.27405804 113.2867665
## 1067 Strepera-versicolor-743906.mp3 5.020874e-03   234 113.29239152 113.2974124
## 1068 Strepera-versicolor-743906.mp3 4.312535e-03   235 113.30749581 113.3118083
## 1069 Strepera-versicolor-743906.mp3 1.441678e-02   236 113.31230835 113.3267251
## 1070 Strepera-versicolor-743906.mp3 4.086908e-01   237 115.82291190 116.2316027
## 1071 Strepera-versicolor-743906.mp3 4.166700e-05   238 116.23166519 116.2317069
## 1072 Strepera-versicolor-743906.mp3 6.250050e-05   239 116.23187353 116.2319360
## 1073 Strepera-versicolor-743906.mp3 6.250050e-05   240 116.23206103 116.2321235
## 1074 Strepera-versicolor-743906.mp3 4.166700e-05   241 116.23247770 116.2325194
## 1075 Strepera-versicolor-743906.mp3 6.250050e-05   242 116.23287353 116.2329360
## 1076 Strepera-versicolor-743906.mp3 2.523562e-01   243 116.24410279 116.4964590
## 1077 Strepera-versicolor-743906.mp3 5.833380e-04   244 116.49812567 116.4987090
## 1078 Strepera-versicolor-743906.mp3 2.810439e-02   245 116.49989652 116.5280009
## 1079 Strepera-versicolor-743906.mp3 2.750022e-03   246 116.53158427 116.5343343
## 1080 Strepera-versicolor-743906.mp3 8.333400e-05   247 116.53437596 116.5344593
## 1081 Strepera-versicolor-743906.mp3 1.041675e-04   248 116.53456346 116.5346676
## 1082 Strepera-versicolor-743906.mp3 1.250010e-04   249 116.53470930 116.5348343
## 1083 Strepera-versicolor-743906.mp3 8.333400e-05   250 116.53491763 116.5350010
## 1084 Strepera-versicolor-743906.mp3 1.041675e-04   251 116.53508430 116.5351885
## 1085 Strepera-versicolor-743906.mp3 8.333400e-05   252 116.53527180 116.5353551
## 1086 Strepera-versicolor-743906.mp3 1.760431e-02   253 116.53541764 116.5530219
## 1087 Strepera-versicolor-743906.mp3 9.166740e-04   254 116.55448029 116.5553970
## 1088 Strepera-versicolor-743906.mp3 1.437512e-03   255 116.55670947 116.5581470
## 1089 Strepera-versicolor-743906.mp3 6.458385e-03   256 116.55954283 116.5660012
## 1090 Strepera-versicolor-743906.mp3 1.670847e-02   257 116.57333461 116.5900431
## 1091 Strepera-versicolor-743906.mp3 4.312535e-03   258 116.59627229 116.6005848
## 1092 Strepera-versicolor-743906.mp3 9.166740e-03   259 116.62373085 116.6328976
## 1093 Strepera-versicolor-743906.mp3 4.166700e-05   260 116.63296009 116.6330018
## 1094 Strepera-versicolor-743906.mp3 2.585854e-01   261 116.65356442 116.9121498
## 1095 Strepera-versicolor-743906.mp3 1.041675e-04   262 116.91227484 116.9123790
## 1096 Strepera-versicolor-743906.mp3 4.241701e-02   263 116.91242067 116.9548377
## 1097 Strepera-versicolor-743906.mp3 1.193760e-02   264 116.96821279 116.9801504
## 1098 Strepera-versicolor-743906.mp3 2.725022e-02   265 116.98046289 117.0077131
## 1099 Strepera-versicolor-743906.mp3 6.312551e-03   266 117.01727568 117.0235882
## 1100 Strepera-versicolor-743906.mp3 1.104176e-03   267 117.02783827 117.0289424
## 1101 Strepera-versicolor-743906.mp3 4.083366e-03   268 117.03027579 117.0343592
## 1102 Strepera-versicolor-743906.mp3 2.083350e-04   269 117.06013020 117.0603385
## 1103 Strepera-versicolor-743906.mp3 2.916690e-04   270 117.06040103 117.0606927
## 1104 Strepera-versicolor-743906.mp3 6.250050e-05   271 123.07640781 123.0764703
## 1105 Strepera-versicolor-743906.mp3 5.395877e-03   272 123.07655365 123.0819495
## 1106 Strepera-versicolor-743906.mp3 6.250050e-05   273 123.08203286 123.0820954
## 1107 Strepera-versicolor-772298.mp3 4.020766e-01     1   2.74335471   3.1454313
## 1108 Strepera-versicolor-772298.mp3 7.392531e-03     2   3.17169066   3.1790832
## 1109 Strepera-versicolor-772298.mp3 4.041855e-01     3  13.96696311  14.3711486
## 1110 Strepera-versicolor-772298.mp3 4.535295e-03     4  14.39135336  14.3958887
## 1111 Strepera-versicolor-772298.mp3 8.662414e-03     5  14.40461909  14.4132815
## 1112 Strepera-versicolor-772298.mp3 4.920795e-03     6  14.42661528  14.4315361
## 1113 Strepera-versicolor-772298.mp3 1.950177e-03     7  14.44298769  14.4449379
## 1114 Strepera-versicolor-772298.mp3 4.007840e-01     8  25.26610685  25.6668909
## 1115 Strepera-versicolor-772298.mp3 6.394766e-03     9  25.68212947  25.6885242
## 1116 Strepera-versicolor-772298.mp3 3.603292e-01    10  34.17607975  34.5364090
## 1117 Strepera-versicolor-772298.mp3 2.267648e-05    11  34.53947028  34.5394930
## 1118 Strepera-versicolor-772298.mp3 2.224562e-02    12  34.53956099  34.5618066
## 1119 Strepera-versicolor-772298.mp3 5.079531e-03    13  34.61502830  34.6201078
## 1120 Strepera-versicolor-772298.mp3 5.920828e-02    14  38.48114069  38.5403490
## 1121 Strepera-versicolor-772298.mp3 5.655513e-02    15  38.55098423  38.6075394
## 1122 Strepera-versicolor-772298.mp3 9.977649e-04    16  38.61007913  38.6110769
## 1123 Strepera-versicolor-772298.mp3 9.070590e-05    17  38.61114492  38.6112356
## 1124 Strepera-versicolor-772298.mp3 1.133824e-04    18  38.62275528  38.6228687
## 1125 Strepera-versicolor-772298.mp3 9.070590e-05    19  38.62289134  38.6229820
## 1126 Strepera-versicolor-772298.mp3 6.077296e-03    20  38.63032922  38.6364065
## 1127 Strepera-versicolor-772298.mp3 2.267648e-05    21  38.63715484  38.6371775
## 1128 Strepera-versicolor-772298.mp3 4.535295e-05    22  38.63733625  38.6373816
## 1129 Strepera-versicolor-772298.mp3 9.750885e-03    23  38.66332350  38.6730744
## 1130 Strepera-versicolor-772298.mp3 1.120218e-02    24  38.67627176  38.6874739
## 1131 Strepera-versicolor-772298.mp3 6.802943e-05    25  38.69994600  38.7000140
## 1132 Strepera-versicolor-772298.mp3 4.648678e-03    26  38.70005939  38.7047081
## 1133 Strepera-versicolor-772298.mp3 9.070590e-05    27  38.72953881  38.7296295
## 1134 Strepera-versicolor-772298.mp3 6.943537e-02    28  38.72967486  38.7991102
## 1135 Strepera-versicolor-772298.mp3 2.267648e-05    29  38.79924629  38.7992690
## 1136 Strepera-versicolor-772298.mp3 9.569473e-03    30  38.80416709  38.8137366
## 1137 Strepera-versicolor-772298.mp3 7.256472e-04    31  38.85532522  38.8560509
## 1138 Strepera-versicolor-772298.mp3 3.288089e-03    32  43.87469514  43.8779832
## 1139 Strepera-versicolor-772298.mp3 5.338042e-02    33  43.89006979  43.9434502
## 1140 Strepera-versicolor-772298.mp3 2.104150e-01    34  43.96637614  44.1767912
## 1141 Strepera-versicolor-772298.mp3 3.811916e-02    35  44.18155322  44.2196724
## 1142 Strepera-versicolor-772298.mp3 9.796238e-03    36  44.23287008  44.2426663
## 1143 Strepera-versicolor-772298.mp3 4.535295e-05    37  44.24275703  44.2428024
## 1144         Sylvia_atricapilla.mp3 5.854315e-03     1   0.49253335   0.4983877
## 1145         Sylvia_atricapilla.mp3 2.083386e-05     2   0.49845017   0.4984710
## 1146         Sylvia_atricapilla.mp3 1.250032e-04     3   0.49863767   0.4987627
## 1147         Sylvia_atricapilla.mp3 1.789629e-02     4   0.71851826   0.7364146
## 1148         Sylvia_atricapilla.mp3 6.529333e-02     5   0.79477020   0.8600635
## 1149         Sylvia_atricapilla.mp3 1.541706e-03     6   0.93202369   0.9335654
## 1150         Sylvia_atricapilla.mp3 4.166773e-05     7   0.93369040   0.9337321
## 1151         Sylvia_atricapilla.mp3 1.041693e-04     8   0.93389874   0.9340029
## 1152         Sylvia_atricapilla.mp3 6.062654e-03     9   0.94266979   0.9487324
## 1153         Sylvia_atricapilla.mp3 1.250032e-04    10   0.95048249   0.9506075
## 1154         Sylvia_atricapilla.mp3 1.220864e-01    11   0.95067000   1.0727564
## 1155         Sylvia_atricapilla.mp3 5.625143e-03    12   1.14044565   1.1460708
## 1156         Sylvia_atricapilla.mp3 1.267532e-01    13   1.26809473   1.3948480
## 1157         Sylvia_atricapilla.mp3 1.437537e-02    14   1.45174523   1.4661206
## 1158         Sylvia_atricapilla.mp3 2.083386e-05    15   1.66589651   1.6659173
## 1159         Sylvia_atricapilla.mp3 1.529206e-02    16   1.66593817   1.6812302
## 1160         Sylvia_atricapilla.mp3 1.458370e-03    17   1.97611272   1.9775711
## 1161         Sylvia_atricapilla.mp3 4.166773e-05    18   1.97759193   1.9776336
## 1162         Sylvia_atricapilla.mp3 3.391753e-02    19   1.98165453   2.0155721
## 1163         Sylvia_atricapilla.mp3 5.558475e-02    20   2.01969717   2.0752819
## 1164         Sylvia_atricapilla.mp3 2.083386e-03    21   2.07867783   2.0807612
## 1165         Sylvia_atricapilla.mp3 2.083386e-05    22   2.08190708   2.0819279
## 1166         Sylvia_atricapilla.mp3 1.427328e-01    23   2.08199042   2.2247232
## 1167         Sylvia_atricapilla.mp3 9.679413e-02    24   2.33485101   2.4316451
## 1168         Sylvia_atricapilla.mp3 5.362636e-02    25   2.49820933   2.5518357
## 1169         Sylvia_atricapilla.mp3 8.333545e-05    26   2.59560764   2.5956910
## 1170         Sylvia_atricapilla.mp3 9.700247e-02    27   2.59589931   2.6929018
## 1171         Sylvia_atricapilla.mp3 7.166849e-03    28   2.69298511   2.7001520
## 1172         Sylvia_atricapilla.mp3 6.604335e-03    29   2.77388300   2.7804873
## 1173         Sylvia_atricapilla.mp3 5.012627e-02    30   2.79286265   2.8429889
## 1174         Sylvia_atricapilla.mp3 4.166773e-05    31   2.84300976   2.8430514
## 1175         Sylvia_atricapilla.mp3 1.132737e-01    32   2.88534417   2.9986179
## 1176         Sylvia_atricapilla.mp3 2.939658e-02    33   3.06916134   3.0985579
## 1177         Sylvia_atricapilla.mp3 1.181072e-01    34   3.18035167   3.2984588
## 1178         Sylvia_atricapilla.mp3 1.110862e-01    35   3.35383524   3.4649214
## 1179         Sylvia_atricapilla.mp3 7.083513e-04    36   3.46510890   3.4658173
## 1180         Sylvia_atricapilla.mp3 7.164765e-02    37   3.50969337   3.5813410
## 1181         Sylvia_atricapilla.mp3 6.250159e-05    38   3.58136186   3.5814244
## 1182         Sylvia_atricapilla.mp3 1.145862e-03    39   3.58148686   3.5826327
## 1183         Sylvia_atricapilla.mp3 2.291725e-04    40   3.58282023   3.5830494
## 1184         Sylvia_atricapilla.mp3 1.413578e-01    41   3.68226026   3.8236180
## 1185         Sylvia_atricapilla.mp3 1.485246e-01    42   3.92397473   4.0724993
## 1186         Sylvia_atricapilla.mp3 1.288366e-01    43   4.14014689   4.2689835
## 1187         Sylvia_atricapilla.mp3 2.250057e-03    44   4.27106689   4.2733169
## 1188         Sylvia_atricapilla.mp3 9.166900e-02    45   4.38646565   4.4781346
## 1189         Sylvia_atricapilla.mp3 1.253365e-01    46   4.54276129   4.6680978
## 1190         Sylvia_atricapilla.mp3 6.479331e-03    47   4.66941034   4.6758897
## 1191         Sylvia_atricapilla.mp3 4.933459e-02    48   4.71311979   4.7624544
## 1192         Sylvia_atricapilla.mp3 6.618918e-02    49   4.82389344   4.8900826
## 1193         Sylvia_atricapilla.mp3 9.791916e-03    50  10.54035123  10.5501431
## 1194         Sylvia_atricapilla.mp3 8.071038e-02    51  10.58568571  10.6663961
## 1195         Sylvia_atricapilla.mp3 4.295943e-02    52  10.87121380  10.9141732
## 1196         Sylvia_atricapilla.mp3 4.416779e-03    53  11.11042822  11.1148450
## 1197         Sylvia_atricapilla.mp3 2.083386e-05    54  11.11584502  11.1158659
## 1198         Sylvia_atricapilla.mp3 4.166773e-05    55  11.11607419  11.1161159
## 1199         Sylvia_atricapilla.mp3 1.041693e-04    56  11.11617836  11.1162825
## 1200         Sylvia_atricapilla.mp3 4.166773e-05    57  11.11630337  11.1163450
## 1201         Sylvia_atricapilla.mp3 1.514622e-02    58  11.12082431  11.1359705
## 1202         Sylvia_atricapilla.mp3 2.083386e-05    59  11.13805392  11.1380748
## 1203         Sylvia_atricapilla.mp3 2.083386e-05    60  11.13815809  11.1381789
## 1204         Sylvia_atricapilla.mp3 2.083386e-05    61  11.13940812  11.1394290
## 1205         Sylvia_atricapilla.mp3 7.854366e-03    62  11.13947062  11.1473250
## 1206         Sylvia_atricapilla.mp3 8.958561e-04    63  11.15211678  11.1530126
## 1207         Sylvia_atricapilla.mp3 3.268833e-02    64  11.16045032  11.1931387
## 1208         Sylvia_atricapilla.mp3 2.612566e-02    65  11.21634758  11.2424732
## 1209         Sylvia_atricapilla.mp3 8.833558e-03    66  11.36447634  11.3733099
## 1210         Sylvia_atricapilla.mp3 4.000102e-03    67  11.39835220  11.4023523
## 1211         Sylvia_atricapilla.mp3 1.825046e-02    68  11.47393746  11.4921879
## 1212         Sylvia_atricapilla.mp3 2.487563e-02    69  11.51243843  11.5373141
## 1213         Sylvia_atricapilla.mp3 2.483396e-02    70  11.64190006  11.6667340
## 1214         Sylvia_atricapilla.mp3 6.125156e-02    71  11.89582318  11.9570747
## 1215         Sylvia_atricapilla.mp3 7.083513e-03    72  11.97342932  11.9805128
## 1216         Sylvia_atricapilla.mp3 4.716787e-02    73  11.98463794  12.0318058
## 1217         Sylvia_atricapilla.mp3 1.041693e-04    74  12.03188914  12.0319933
## 1218         Sylvia_atricapilla.mp3 1.416703e-02    75  12.03276416  12.0469312
## 1219         Sylvia_atricapilla.mp3 1.564415e-01    76  12.12030805  12.2767495
## 1220         Sylvia_atricapilla.mp3 2.166722e-03    77  12.28218716  12.2843539
## 1221         Sylvia_atricapilla.mp3 8.750222e-03    78  12.39181495  12.4005652
## 1222         Sylvia_atricapilla.mp3 6.225158e-02    79  12.47615043  12.5384020
## 1223         Sylvia_atricapilla.mp3 5.318885e-02    80  12.57067366  12.6238625
## 1224         Sylvia_atricapilla.mp3 1.622125e-01    81  12.68334319  12.8455556
## 1225         Sylvia_atricapilla.mp3 1.057944e-01    82  12.95197502  13.0577694
## 1226         Sylvia_atricapilla.mp3 1.322742e-01    83  13.13866727  13.2709415
## 1227         Sylvia_atricapilla.mp3 5.402221e-02    84  13.33394306  13.3879653
## 1228         Sylvia_atricapilla.mp3 9.714830e-02    85  13.41363259  13.5107809
## 1229         Sylvia_atricapilla.mp3 5.208466e-03    86  13.51248927  13.5176977
## 1230         Sylvia_atricapilla.mp3 1.729211e-03    87  13.52123949  13.5229687
## 1231         Sylvia_atricapilla.mp3 1.542123e-01    88  13.58661615  13.7408284
## 1232         Sylvia_atricapilla.mp3 1.568373e-01    89  13.85358127  14.0104186
## 1233         Sylvia_atricapilla.mp3 1.416286e-01    90  14.07487856  14.2165072
## 1234         Sylvia_atricapilla.mp3 9.862751e-02    91  14.33232260  14.4309501
## 1235         Sylvia_atricapilla.mp3 4.166773e-05    92  14.43097094  14.4310126
## 1236         Sylvia_atricapilla.mp3 1.370868e-01    93  14.50174358  14.6388304
## 1237         Sylvia_atricapilla.mp3 9.250235e-02    94  14.67381045  14.7663128
## 1238         Sylvia_atricapilla.mp3 6.560583e-02    95  14.77816727  14.8437731
## 1239         Sylvia_atricapilla.mp3 1.570457e-01    96  14.94396315  15.1010088
## 1240         Sylvia_atricapilla.mp3 1.883381e-01    97  15.26451296  15.4528511
## 1241         Sylvia_atricapilla.mp3 4.681369e-02    98  15.49139373  15.5382074
## 1242         Sylvia_atricapilla.mp3 7.708529e-03    99  15.64131421  15.6490227
## 1243         Sylvia_atricapilla.mp3 9.939836e-02   100  15.65273116  15.7521295
## 1244         Sylvia_atricapilla.mp3 2.083386e-05   101  15.75217119  15.7521920
## 1245         Sylvia_atricapilla.mp3 1.272949e-02   102  15.84481938  15.8575489
## 1246         Sylvia_atricapilla.mp3 6.125156e-03   103  15.86834081  15.8744660
## 1247         Sylvia_atricapilla.mp3 1.598791e-01   104  15.93678005  16.0966591
## 1248         Sylvia_atricapilla.mp3 2.083386e-05   105  21.17597571  21.1759965
## 1249         Sylvia_atricapilla.mp3 8.833558e-03   106  21.17605904  21.1848926
## 1250         Sylvia_atricapilla.mp3 1.843797e-02   107  21.64144587  21.6598838
## 1251         Sylvia_atricapilla.mp3 4.583450e-04   108  21.73653162  21.7369900
## 1252         Sylvia_atricapilla.mp3 3.050078e-02   109  23.39071950  23.4212203
## 1253         Sylvia_atricapilla.mp3 5.000127e-03   110  23.75502043  23.7600206
## 1254         Sylvia_atricapilla.mp3 5.395970e-03   111  23.81443860  23.8198346
## 1255         Sylvia_atricapilla.mp3 4.166773e-05   112  23.81993874  23.8199804
## 1256         Sylvia_atricapilla.mp3 8.333545e-05   113  23.82166795  23.8217513
## 1257         Sylvia_atricapilla.mp3 6.837674e-02   114  23.82179296  23.8901697
## 1258         Sylvia_atricapilla.mp3 4.166773e-05   115  23.97154676  23.9715884
## 1259         Sylvia_atricapilla.mp3 3.958434e-04   116  23.97165093  23.9720468
## 1260         Sylvia_atricapilla.mp3 2.727153e-02   117  23.97631772  24.0035892
## 1261         Sylvia_atricapilla.mp3 4.166773e-05   118  24.00365174  24.0036934
## 1262         Sylvia_atricapilla.mp3 8.541884e-03   119  24.01333949  24.0218814
## 1263         Sylvia_atricapilla.mp3 4.043853e-02   120  24.05798646  24.0984250
## 1264         Sylvia_atricapilla.mp3 1.497330e-01   121  24.22340733  24.3731403
## 1265         Sylvia_atricapilla.mp3 4.166773e-05   122  24.37318197  24.3732236
## 1266         Sylvia_atricapilla.mp3 3.541757e-04   123  24.37334864  24.3737028
## 1267         Sylvia_atricapilla.mp3 2.200056e-02   124  24.40037016  24.4223707
## 1268         Sylvia_atricapilla.mp3 2.083386e-05   125  24.42243322  24.4224541
## 1269         Sylvia_atricapilla.mp3 1.041693e-04   126  24.42251656  24.4226207
## 1270         Sylvia_atricapilla.mp3 3.750095e-04   127  24.42305824  24.4234332
## 1271         Sylvia_atricapilla.mp3 4.010519e-02   128  24.55045731  24.5905625
## 1272         Sylvia_atricapilla.mp3 4.395945e-03   129  24.59668765  24.6010836
## 1273         Sylvia_atricapilla.mp3 9.291903e-03   130  24.60781293  24.6171048
## 1274         Sylvia_atricapilla.mp3 8.771056e-03   131  24.85671509  24.8654861
## 1275         Sylvia_atricapilla.mp3 2.456312e-02   132  24.87644476  24.9010079
## 1276         Sylvia_atricapilla.mp3 2.712569e-02   133  25.00230213  25.0294278
## 1277         Sylvia_atricapilla.mp3 4.039686e-02   134  25.10649227  25.1468891
## 1278         Sylvia_atricapilla.mp3 5.562641e-03   135  25.28072587  25.2862885
## 1279         Sylvia_atricapilla.mp3 5.252217e-02   136  25.44406335  25.4965855
## 1280         Sylvia_atricapilla.mp3 9.166900e-04   137  25.64781853  25.6487352
## 1281         Sylvia_atricapilla.mp3 1.618374e-01   138  25.65352701  25.8153645
## 1282         Sylvia_atricapilla.mp3 2.083386e-05   139  25.81538529  25.8154061
## 1283         Sylvia_atricapilla.mp3 1.233365e-02   140  25.86876165  25.8810953
## 1284         Sylvia_atricapilla.mp3 7.416855e-03   141  26.04691201  26.0543289
## 1285         Sylvia_atricapilla.mp3 4.770955e-03   142  26.05959983  26.0643708
## 1286         Sylvia_atricapilla.mp3 2.083386e-05   143  26.06441245  26.0644333
## 1287         Sylvia_atricapilla.mp3 7.923118e-02   144  26.07099595  26.1502271
## 1288         Sylvia_atricapilla.mp3 4.050103e-02   145  26.18941563  26.2299167
## 1289         Sylvia_atricapilla.mp3 6.975177e-02   146  26.29998094  26.3697327
## 1290         Sylvia_atricapilla.mp3 8.333545e-05   147  26.40875454  26.4088379
## 1291         Sylvia_atricapilla.mp3 1.405869e-01   148  26.40890038  26.5494873
## 1292         Sylvia_atricapilla.mp3 3.895932e-03   149  26.55507076  26.5589667
## 1293         Sylvia_atricapilla.mp3 1.278574e-01   150  26.62994766  26.7578051
## 1294         Sylvia_atricapilla.mp3 2.591733e-02   151  26.89195432  26.9178716
## 1295         Sylvia_atricapilla.mp3 9.439823e-02   152  26.95041414  27.0448124
## 1296         Sylvia_atricapilla.mp3 4.166773e-05   153  27.04483321  27.0448749
## 1297         Sylvia_atricapilla.mp3 4.583450e-03   154  27.04772911  27.0523126
## 1298         Sylvia_atricapilla.mp3 4.166773e-05   155  27.05235423  27.0523959
## 1299         Sylvia_atricapilla.mp3 2.500064e-03   156  27.06870881  27.0712089
## 1300         Sylvia_atricapilla.mp3 7.175182e-02   157  27.08137580  27.1531276
## 1301         Sylvia_atricapilla.mp3 1.167946e-01   158  27.26069286  27.3774875
## 1302         Sylvia_atricapilla.mp3 1.255240e-01   159  27.43278057  27.5583046
## 1303         Sylvia_atricapilla.mp3 5.166798e-03   160  27.56157551  27.5667423
## 1304         Sylvia_atricapilla.mp3 6.300160e-02   161  27.63926498  27.7022666
## 1305         Sylvia_atricapilla.mp3 1.225031e-01   162  27.73782999  27.8603331
## 1306         Sylvia_atricapilla.mp3 1.285241e-01   163  27.93300161  28.0615257
## 1307         Sylvia_atricapilla.mp3 9.166900e-02   164  28.11661045  28.2082794
## 1308         Sylvia_atricapilla.mp3 6.812673e-03   165  28.21259205  28.2194047
## 1309         Sylvia_atricapilla.mp3 3.141747e-02   166  28.26128079  28.2926983
## 1310         Sylvia_atricapilla.mp3 5.295968e-02   167  28.30336519  28.3563249
## 1311         Sylvia_atricapilla.mp3 6.375162e-03   168  28.36817934  28.3745545
## 1312         Sylvia_atricapilla.mp3 8.896059e-02   169  28.55503826  28.6439989
## 1313         Sylvia_atricapilla.mp3 1.265449e-01   170  28.71922993  28.8457748
## 1314         Sylvia_atricapilla.mp3 4.166773e-05   171  28.86281691  28.8628586
## 1315         Sylvia_atricapilla.mp3 8.333545e-05   172  28.86296275  28.8630461
## 1316         Sylvia_atricapilla.mp3 2.916741e-04   173  28.86308775  28.8633794
## 1317         Sylvia_atricapilla.mp3 1.250032e-04   174  28.86340026  28.8635253
## 1318         Sylvia_atricapilla.mp3 1.041693e-04   175  28.86356693  28.8636711
## 1319         Sylvia_atricapilla.mp3 6.250159e-05   176  28.86375444  28.8638169
## 1320         Sylvia_atricapilla.mp3 6.073071e-02   177  28.87804647  28.9387772
## 1321         Sylvia_atricapilla.mp3 6.185574e-02   178  28.98927846  29.0511342

detection$sound.files

##    [1] "mgr.wav"                        "mgr.wav"                       
##    [3] "mgr.wav"                        "mgr.wav"                       
##    [5] "mgr.wav"                        "mgr.wav"                       
##    [7] "mgr.wav"                        "mgr.wav"                       
##    [9] "mgr.wav"                        "mgr.wav"                       
##   [11] "mgr.wav"                        "mgr.wav"                       
##   [13] "mgr.wav"                        "mgr.wav"                       
##   [15] "mgr.wav"                        "mgr.wav"                       
##   [17] "mgr.wav"                        "mgr.wav"                       
##   [19] "mgr.wav"                        "mgr.wav"                       
##   [21] "mgr2.wav"                       "mgr2.wav"                      
##   [23] "mgr2.wav"                       "mgr2.wav"                      
##   [25] "mgr2.wav"                       "mgr2.wav"                      
##   [27] "mgr2.wav"                       "mgr2.wav"                      
##   [29] "mgr2.wav"                       "mgr2.wav"                      
##   [31] "mgr2.wav"                       "mgr2.wav"                      
##   [33] "mgr2.wav"                       "mgr2.wav"                      
##   [35] "mgr2.wav"                       "mgr2.wav"                      
##   [37] "mgr2.wav"                       "mgr2.wav"                      
##   [39] "mgr2.wav"                       "mgr2.wav"                      
##   [41] "mgr2.wav"                       "mgr2.wav"                      
##   [43] "mgr2.wav"                       "mgr2.wav"                      
##   [45] "mgr2.wav"                       "mgr2.wav"                      
##   [47] "mgr2.wav"                       "Strepera-versicolor-571957.mp3"
##   [49] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [51] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [53] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [55] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [57] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [59] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [61] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [63] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [65] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [67] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [69] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [71] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [73] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [75] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [77] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [79] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [81] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [83] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [85] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [87] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [89] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [91] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [93] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [95] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [97] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##   [99] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [101] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [103] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [105] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [107] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [109] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [111] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [113] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [115] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [117] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [119] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [121] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [123] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [125] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [127] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [129] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [131] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [133] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [135] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [137] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [139] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [141] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [143] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [145] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [147] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [149] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [151] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [153] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [155] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [157] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [159] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [161] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [163] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [165] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [167] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-571957.mp3"
##  [169] "Strepera-versicolor-571957.mp3" "Strepera-versicolor-579760.mp3"
##  [171] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [173] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [175] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [177] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [179] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [181] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [183] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [185] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [187] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [189] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [191] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [193] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [195] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [197] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [199] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [201] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [203] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [205] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [207] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [209] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [211] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [213] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [215] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [217] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [219] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [221] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [223] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [225] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [227] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [229] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [231] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [233] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [235] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [237] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [239] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [241] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [243] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [245] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [247] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [249] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [251] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [253] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [255] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [257] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [259] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [261] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [263] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [265] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [267] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [269] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [271] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [273] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [275] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [277] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [279] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [281] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [283] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [285] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-579760.mp3"
##  [287] "Strepera-versicolor-579760.mp3" "Strepera-versicolor-673821.mp3"
##  [289] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [291] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [293] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [295] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [297] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [299] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [301] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [303] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [305] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [307] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [309] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [311] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [313] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [315] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [317] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [319] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [321] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [323] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [325] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [327] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [329] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [331] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [333] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [335] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [337] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [339] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [341] "Strepera-versicolor-673821.mp3" "Strepera-versicolor-673821.mp3"
##  [343] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [345] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [347] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [349] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [351] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [353] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [355] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [357] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [359] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [361] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [363] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [365] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [367] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [369] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [371] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [373] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [375] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [377] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [379] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [381] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [383] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [385] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [387] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [389] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [391] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [393] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [395] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [397] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [399] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [401] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [403] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [405] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [407] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [409] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [411] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [413] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [415] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [417] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [419] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [421] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [423] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [425] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [427] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [429] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [431] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [433] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [435] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [437] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [439] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [441] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [443] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [445] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [447] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [449] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [451] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [453] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-696120.mp3"
##  [455] "Strepera-versicolor-696120.mp3" "Strepera-versicolor-712744.mp3"
##  [457] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [459] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [461] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [463] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [465] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [467] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [469] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [471] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [473] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [475] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [477] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [479] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [481] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [483] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [485] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [487] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [489] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [491] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [493] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [495] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-712744.mp3"
##  [497] "Strepera-versicolor-712744.mp3" "Strepera-versicolor-729330.mp3"
##  [499] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [501] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [503] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [505] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [507] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [509] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [511] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [513] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [515] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [517] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [519] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [521] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [523] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [525] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [527] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [529] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [531] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [533] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [535] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [537] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [539] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [541] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [543] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [545] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [547] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [549] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [551] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [553] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [555] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [557] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [559] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [561] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [563] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [565] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [567] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [569] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [571] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [573] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [575] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [577] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [583] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [585] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [587] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [589] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [591] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [593] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [595] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [597] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [599] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [601] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [603] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [605] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [607] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [609] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [611] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [613] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [615] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [617] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [625] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [635] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [637] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [639] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [641] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [643] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [645] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [647] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [649] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [651] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [653] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [655] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [657] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [659] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [661] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [663] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [665] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [667] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [671] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [673] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [675] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [677] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [679] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [681] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [683] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [685] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [687] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [689] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [691] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [693] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [695] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [697] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [699] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [701] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [703] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [705] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [707] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [757] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [759] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [761] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [763] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [767] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [773] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
##  [775] "Strepera-versicolor-729330.mp3" "Strepera-versicolor-729330.mp3"
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##  [781] "Strepera-versicolor-729331.mp3" "Strepera-versicolor-729331.mp3"
##  [783] "Strepera-versicolor-729331.mp3" "Strepera-versicolor-729331.mp3"
##  [785] "Strepera-versicolor-729331.mp3" "Strepera-versicolor-729331.mp3"
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##  [831] "Strepera-versicolor-729331.mp3" "Strepera-versicolor-729331.mp3"
##  [833] "Strepera-versicolor-729331.mp3" "Strepera-versicolor-743906.mp3"
##  [835] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
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##  [851] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [853] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [855] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [857] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [859] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [861] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [863] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [865] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [867] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [869] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [871] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [873] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [875] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [877] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [879] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [881] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [883] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [885] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [887] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [889] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [891] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [893] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [895] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [897] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [899] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [901] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [903] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [905] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [907] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [909] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [911] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [913] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [915] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [917] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [919] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [921] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [923] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [925] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [927] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [929] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [931] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [933] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [935] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [937] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [939] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [941] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [943] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [945] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [947] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [949] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [951] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [953] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [955] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [957] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [959] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [961] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [963] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [965] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [967] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [969] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [971] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [973] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [975] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [977] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [979] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [981] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [983] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [985] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [987] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [989] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [991] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [993] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [995] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [997] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
##  [999] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1001] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1003] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1005] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1007] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1009] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1011] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1013] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1015] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1017] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1019] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1021] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1023] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1025] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1027] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1029] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1031] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1033] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1035] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1037] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1039] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1041] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1043] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1045] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1047] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1049] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1051] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1053] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1055] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1057] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1059] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1061] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1063] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1065] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1067] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1069] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1071] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1073] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1075] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1077] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1079] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1081] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1083] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1085] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1087] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1089] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1091] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1093] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1095] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1097] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1099] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1101] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1103] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1105] "Strepera-versicolor-743906.mp3" "Strepera-versicolor-743906.mp3"
## [1107] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1109] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1111] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1113] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1115] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1117] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1119] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1121] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1123] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1125] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1127] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1129] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1131] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1133] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1135] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1137] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1139] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1141] "Strepera-versicolor-772298.mp3" "Strepera-versicolor-772298.mp3"
## [1143] "Strepera-versicolor-772298.mp3" "Sylvia_atricapilla.mp3"        
## [1145] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1147] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1149] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1151] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1153] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1155] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1157] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1159] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1161] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1163] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1165] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1167] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1169] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1171] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1173] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1175] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1177] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1179] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1181] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1183] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1185] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1187] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1189] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1191] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1193] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1195] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1197] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1199] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1201] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1203] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1205] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1207] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1209] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1211] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1213] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1215] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1217] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1219] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1221] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1223] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1225] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1227] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1229] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1231] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1233] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1235] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1237] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1239] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1241] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1243] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1245] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1247] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1249] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1251] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1253] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1255] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1257] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1259] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1261] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1263] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1265] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1267] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1269] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1271] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1273] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1275] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1277] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1279] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1281] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1283] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1285] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1287] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1289] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1291] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1293] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1295] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1297] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1299] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1301] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1303] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1305] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1307] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1309] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1311] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1313] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1315] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1317] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1319] "Sylvia_atricapilla.mp3"         "Sylvia_atricapilla.mp3"        
## [1321] "Sylvia_atricapilla.mp3"

The packages ohun and viridis allow us to visualize the autodetection points determined above plotted on a spectrogram.

label_spectro(wave = STREPV, detection = detection[detection$sound.files == "Strepera-versicolor-571957.mp3", ], hop.size = 10, ovlp = 50, flim = c(1, 10), fastdisp=TRUE) 

CHALLENGE

1. Record an audio file of you saying something (around 30 seconds!)
2. Transfer that file onto your laptop. Save it whereever you’d like!
3. Read in the mp3 file.
4. Plot the spectrogram from 10-20 seconds of the audio file.
5. Run a detection algorithm on your file and plot the detection results.

#wav <- read_audio(file.path("~/Desktop", "your_file_name.wav"))
#temp_slice <- c(from = 10, to = 20) # in seconds
#ticks <- c(from = 1000, to = 20000, by = 1000)
#spectro(wav, tlim = temp_slice, FFT_size = 512, ticks_y = ticks) #sets the y axis labeling, in Hz, so its 1 kHz to 100 kHz, in 1 kHz interval
#detection <- auto_detec(threshold = 5, ssmooth = 300, bp = c(2, 9), wl = 300, path = getwd())

#label_spectro(wave = wav, detection = detection[detection$sound.files == "mgr.wav", ], hop.size = 10, ovlp = 50, flim = c(1, 10), fastdisp=TRUE)